• Balance a nearly full bucket of water against someone's door at night. When they open it the next morning it will fall and flood their room.
• Remove someone's doorknob and reinstall it with the lock on the inside. Works best if the victim is in the room and the door is locked and you have his/her keys.
• Place clear tape across the outside of a door from top to bottom. Frequently people will run into it especially if they are in a hurry.
• Steal a person's door. Leave a trail of clue's as to where to find it. Have them running all over the place trying to find it and have them end up somewhere near where they started. (like in the next room)
• Reverse the peephole on peoples door. Allows for some interesting spying since very few people actually check this part of the door.

Mail Pranks 

• Send in subscriptions to embarrassing magazines in the victim's name. Make sure to check "Bill Me".
• Send off a request in the victims name to numerous foreign postage stamp bureaus requesting ordering information, to be put on mailing lists, etc. The response is quite astounding.
• Get change of address cards from the post office and change the victim's address to someplace like Guam.

Camping Pranks 

• Bury someone's hatchet or ax in a tree about 20 feet off the ground and in plain sight.
• Snipe Hunts. 'Nuff Said.
• Spray someone's tent with some aerosol based bug spray. This will erode the waterproofing of the tent.

Showering Pranks 

• Urinate in a person's shampoo.
• Put Nair or some other hair removal chemical in a person's shampoo or conditioner. You may need to distract the person for a moment to let the stuff take a better hold.
• Fill the shower head with dry temper paint, onion salt, easter egg pellets or the like. Lifesavers are great since they dissolve and then reform on the victim. The victim will feel sticky afterwards and of course the solution to that is to take another shower...
• On a cubicle where the door reaches the floor, seal the door shut and fill the cubicle with water. You may wish to introduce marine life.
• Flush toilets while a person showers. The more toilets the better.
• Swipe a person's cloths while they are showering. Put them in an embarrassing place such as the showers for people of the opposite sex.
• Glue the lids to people's shampoo shut. They get all wet and then realize they can't wash their hair.

Toilet Pranks 

• Place clear cellophane over the toilet bowl but under the seat. Works best at parties where a large percentage of the people are drunk.
• Place a small tube in one or the water holes with the other end pointed outward at the victim. When flushed results in an impromptu shower.
• Flush waterproofed cherry bombs or M-80's down public toilets. Explosives in Port-O-Potty's can be fun too.
• Place vaseline (or some other reasonably clear gel) on the seat at night. Listen for the screams. ICY-HOT or Atomic Balm are even better. Also put the stuff on the toilet paper.
• Shoe Polish of the appropriate color on the seat.
• Place several packages of "Knox" (clear gelatin) in the toilet of someone who will not be around for several days. Looks like water and is harder to detect than the cellophane on the lid. For a more instant effect, there is a substance available at most magic supply stores called anhydrous sodium poly-acrylate which holds up to 300 times its weight in water. Doesn't take much to turn a toilet solid or someone's drink, or...
• Rig an outhouse to have some explosive buried in the hole, and the trigger to the toilet seat. The victim will have a great time trying to clean that off.
• Place a candle a little below the seat and off to the side. Methane lights up quite nicely.

Food & Restaurant Pranks 

• Convince the person that they have eaten a piece of food that has been soiled by some bodily function. Have fake "evidence" (or real evidence if you really are cruel) to back up your claim such as pictures.
• Give your name as Pupupu to a maitre-de. When he calls you to your table you will hear, "Pu-pu-pu Party of four...".
• Same thing but give your name as Connie Lingus, Dick Hertz, Harry Colon, etc.
• Freeze glasses to trays in the cafeteria. This can be accomplished by smearing the bottom of the glass with honey and sticking it firmly to the tray. Next fill the glass with ice, water and salt to lower the temperature. After a few minutes the honey should be frozen to both the tray and the glass.
• Glue glasses in a cafeteria to the bottom of a table.
• Put pure crystallized caffeine in someone's coffee pot. This will make expresso look like milk.
• Get some of the tracer pills that turn urine blue (or some other interesting color) Crush and slip it into some food. The victim will be peeing blue for 2-3 days afterwards though the pills themselves are just dye and are completely harmless.
• Bake brownies or cookies and substitute Ex-Lax for part of the chocolate. Use some chocolate to keep the taste right.
• Rig the lid of salt shakers to fail when used, resulting in a veritable salt lick on the victim's food.

Dorm Room Pranks 

• Fill an accordion folder with shaving cream, insert under someone's door and stomp on it which will send large amounts of shaving cream into their room without ever opening the door. Also can be done with a fine powder (Talcum powder works nicely) in a bag with a hole in the bottom. Slip the open end under the door, stick a hair dryer in the hole and the room gets a nice sugar coating.
• Flood the floor of a room and open the window during a very cold night when the occupants won't be returning for a while. Also good in public bathrooms.
• Purchase several hundred crickets from the local pet store and release them everywhere. (and I do mean everywhere) Crickets are quite noisy and should result in a few sleepless nights.
• Take a dump into a small cup and place it in the most hard-to-find/get-at place in someone's room. They'll tear their room apart looking for the smell.
• Place raw eggs under the person's pillow or comforter or somewhere else that is bulky enough that the eggs won't be noticed until after they have been crushed. This is lots of fun to clean up after...
• Fill a person's room while they are out with massive quantities of crumpled up newspaper. This takes a fair bit of planning, a lot of paper and a small room but can have good results.
• Remove doors on your hall and swap them with other doors from around the hall.
• Cover a person's door with butcher paper and fill the space between the door and the wall with confetti, peanuts, etc.
• Attach a remote control to the fire alarm in a room and set it off from a safe distance. Watch the victim(s) panic. When the panic subsides, do it again. And again. And... well you get the picture.

Body Pranks 

• Hold a magnifying glass over someone who is sunbathing. Be prepared to run shortly after you do this.
• Place Icy-Hot, Atomic Balm or the like in someone's jock or underwear. Warning! This results in screaming in the most macho of guys.
• Wave microwaved mayonnaise under the nose of a person who is drunk and feeling queasy. Alternately start asking questions such as "Would you like a cold greasy pork chop? How about an earthworm omelette?..."
• Get some silver nitrate which has the odd effect of turning skin a blackish purple. Be creative.
• Write all sorts of nasty messages in permanent marker on a persons body while they are asleep or passed out drunk. Put them in hard to cover up places.

Classroom Pranks 

• Superglue EVERYTHING in a classroom down. Chairs, chalk, books, whatever. Don't be choosy.
• When a teacher leaves the room, have everyone turn every desk and chair upside down. When the teacher returns be sitting on your chairs working as if nothing had happened.
• When dissecting animals, take the liver (or some other brown organ) and place it in the instructor's coffee. Place parts from your dissection in various places around a cafeteria salad bar.

Tapes & Movie Pranks 

• Crack open someone's audio cassettes and flip the tape over so that what comes out is pure gibberish.
• Rent porn tapes from the video store and record something like Barney or the Wizard of Oz over them. Just imagine the next person who gets them. Better yet, do it the other way around or exchange the tape in their respective cases. (they aren't likely to check)

Miscellaneous Pranks 

• When you see several folks relaxing in a hot tub, throw ice cubes into the tub. They'll wonder who's throwing stuff at them, but the cubes melt almost instantly leaving no evidence or clues as to who is doing it.
• Release large numbers of pigeons into a gymnasium or lecture hall. Young pigs in the hallway are good too. Even better if they (pigeons or pigs) have been fed laxatives.
• Release a chicken or similar noisy relatively light animal between a dropped ceiling (he ones with the tiles) and the actual ceiling. They are tough enough to catch on normal ground.
• During the part of a wedding where the minister/priest/etc asks "speak up now or forever hold your peace", send a small child running up the isle yelling "Daddy, daddy".
• Superglue several quarters to a flat surface such as a bench or floor and watch people try to remove them.
• Get some cones or barrels and divert traffic from a nearby street through campus or your workplace.
• Advertise your principle or bosses job in the local paper.
• Flour on top of the blades of ceiling fans.
• If you know someone who is a homophobe, slip some homoerotic art books in their bag while they are distracted. When they walk through the library's book detector, they will have to empty out the bag revealing the book in question.
• Throw those fake foam rocks which are available at novelty stores at someone. Works best when around real rocks such as in a geology class or outdoors.
• Be obnoxious as possible while loudly speaking another language. (german, french or whatever) When you hear someone mutter something like, "I wish they would shut up." respond appropriately in perfect english.
• Start quasi-political parties in school for the sole purpose of being obnoxious. (meaning you don't really have anything meaningful to say) Make emblems and post them on everything in sight, march around spewing meaningless propaganda etc.
• Hire a stripper to appear in a high traffic area, such as a cafeteria during peak hours.
• Fill several vending machines in a high traffic area with condoms and beer cans.
• Take some soup or stew in a plastic bag. Pretend to toss your cookies depositing the substance on the floor or table. Have a buddy look over and say, "Hey that looks good", and eat a piece of meat or veggie. May result in others nearby loosing their lunch as well.
• Put every single chair from a large building in one room. The smaller the room the better. Also good near the entrance to a building.
• Fill someone's umbrella with confetti, wait until a rainy day and enjoy.
• Leave insect egg cases/clusters in inaccessible areas.
• Erect a large paper mache penis on school grounds in a very public place.
• Write messages on it for added effect. Also works with snow.
• Put doggie do in a paper bag, light the bag, put on someone's doorstep, ring the bell and watch them stamp it out.
• Scrape coagulate grease off of ribs and serve it as leftover lemon sorbetto.
• Hide pornographic pictures (the nastier the better) in places where someone who is very easily offended or embarrassed will find them quite unexpectedly. Even better if there are numerous amounts of small pictures hidden in obscure places that will still be found even years later.
• Hand the principal/headmaster some small item when getting your diploma. Marbles, balloons, condoms, coins etc. Works best if everyone does it.
• Take a dump on a plate and stick it in the microwave. The area will smell for weeks.

Computer Pranks 

• Change the prompt on someones computer to be black on black. This is rather cruel if the person is computer illiterate. Very effective the day before a big project is due.
• Run a XXX-GIF slide show on the overhead computer projectors found in many computer rooms and large lecture halls. Very effective if done before a large class. You may wish to superglue the drive doors shut as well as all the relevant power switches in the "on" position and the power cables to the wall and hide the keyboard.
• Write a small program that prints "Formatting C:" and starts printing a series of dots at intervals afterwards. Simulate disk access by continuously creating and deleting an empty text file.
• Write a daemon that sends each individual page of a print job to a different printer on the network. Select the printer at random.
• Put an intercom inside a machine and then convince some nerd that it is an AI with voice recognition.
• Convince a newbie that there has been a virus going around that presents hypnotic patterns on the screen which can really mess up your mind. Then start up remotely or set to start at a particular time a fractal program of some sort. They'll probably panic big time.
• Write a TSR that turns the keyboard on and off at short intervals. You'll watch the person try keyboard after keyboard. Can also swap keys using ANSI.SYS or xmodemap depending on the system.
• onvert a XXX image to a bitmap and make it someone's OS/2 or Windows backround. You can also change the backround of someone's X-Windows session remotely as well as make picture appear and they can't stop you. (use XV or a similar program)
• Rig the spring in a Macintosh floppy drive to fire the disk a goodly distance from the machine upon ejection.
• Reverse the turbo switch so that the machine runs fast when it should run slow and slow when it should be fast.
• If they haven't changed the default password for their BIOS, change it yourself and lock them out of their machine.
• Write fake disaster error messages that appear at random time.

Appliance Pranks 

• Purchase a "universal TV remote" from a place like Radio Shack. When walking by public TVs, such as those in a dorm lounge, change the channel without giving anyone any idea you are doing it.
• Take a transceiver like the ones ham radio operators use (3 watts or more is good) and push transmit while near a TV. Will have the effect of semi-scrambling whatever is showing. Them more powerful the transceiver, the more the TV signal gets messed up. This does work on cable TV.
• Leave toothpaste on the underside of light switches and doorknobs.
• Use appliance timers to detonate stereo equipment at high volume.
• Leave a copier to print 99 copies at 33% resolution on 8x14 paper.
• Leave someone's furniture in a 99% disassembled state. Repeat as necessary.

Sleeping Pranks 

• Fasten someone to their bed with numerous bungi cords.
• Put coat hangers between the mattress and the sheet.
• Get lots of cheap alarm clocks and set them to go off at 3:00am and every 20 minutes thereafter. Hide them well.
• Bury someone several feet deep in wet unrolled toilet paper.
• Pour "cyalume" (the stuff in those glow sticks you see every hallowene) on someone then wake them and say, "Dude, you're glowing" and watch them panic.
• Place the sleeping person's hand in a bowl of lukewarm water. Will frequently cause bed wetting.
• Shave parts of a person while they are passed out drunk. Be creative. Do things such as half a mustache, one eyebrow, etc.
• Draw in permanent marker all sorts of messages on the skin of a person who has passed out drunk. Messages should include things like "[insert name of another person you dislike] was here" with a big arrow pointing to the person's rear end.
• Smear a person's body with Nair or other hair removal substance. Works great on hairy italian guys.
• Print a message in lipstick on someone's chest. (such as "Thank You") Works best after a night where they really got drunk and may not remember what they were doing the night before.
• Sprinkle Sand or Jello Mix or the like in the person's bed.

Pyrotechnical Pranks 

• Burn a hole in someone's newly paved asphalt driveway using thermite.
• Place industrial strength smoke grenades (the sort that will fill up entire buildings) in obscure places in a public building. Also good in someone's car or truck.

Vehicle Pranks 

• Place an old beat up vehicle near the entrance to a school building. Remove the wheels and fill it with cement. Nearly impossible to remove. 
• Cut an old wreck in half and weld it together around a flagpole.
• Disassemble an old car and reassemble it on top of a building or in the main lobby of the building.
• Block off a major road using traffic cones or barrels.
• Get some of the jacks used for moving cars around car lots and move all the cars in a lot so that they are about 3 inches apart and impossible to get into or move.
• Fill someone's car or truck top to bottom with snow. (You'll need a shovel most likely)
• Place a dead fish in an area of the engine that is hard to get to and that will get hot. Jammed under the radiator is just about perfect. After a couple of days the smell just becomes unbearable.
• Jack up a persons car so the wheels are just barely off the ground, but not enough to be noticeable.