Verified answer

duct tape the car door. saran wrap the tires. put packing peanuts in the car. these are all funny things that won't hurt the car.

Put confetti in the air vents, so when they turn on the air or heat it will all blow every where, and would be quite a mess to clean up.

If you have access to their car keys, every day, make small changes to their car. Reprogram the radio stations, adjust the seat, adjust the steering wheel, change the air freshener, etc... and when they talk about it, keep a straight face..

Go to an auto parts wrecker and get the cheapest side window you can find. Buy it, then brake it. Sweep up the bits and take to your targets car. Roll down the window and spread the glass on the seat and the ground around the window. Then run and tell your victim that you think something happened to their car.

Take some regular balloons and fill them up. Place under the tires so that when the car moves they think they have a major problem. Works best at night. Try to keep them out of site.

When it is below freezing outside, dip cotton balls in water and place them all over the car. Contact will freeze the water making it stick until the temperature climbs above freezing.

Put a condom on a tail pipe. Push the end of the condom inside the pipe so it goes unnoticed until a large balloon is dragging along the street!

Attach about 20 feet of fishing line to the back of someone's car. Attach various objects to the other end and hide them. Try a can, trash bag, or kite.

Paint the windows black on the inside.

Seal the door handles off with some strong glue.

Elevate the car and take the wheels.

Put a fake parking ticket on it.

If they have a second wireless control, take it. Every time they try to unlock the car, lock it again right away. Occasionally set off the panic alarm.

Sneak over in the middle of the night and paint it pink with some flowers on it.

Egg it.

Write on the windows with lipstick. Again, on the inside.

Let the air out of the tires. If they have a spare, slash it.

Wrap chains around the tires. Put padlocks on them so they can't come off.

Get one of those inflateable car passengers and put it in the trunk. Make him look murdered. Or put him in the driver seat.

Hide in the back seat. When your friend starts driving, come out and surprise him. Or if there's no danger, put your hands over his eyes for a second and say, "guess who?"

Place a fake license plate over the real one. Give it a clever saying.

Pry top of door open

fill with Builders foam.

Watch and point fingers.

potatoe wedged in Exhaust

superglue in the Locks or superglue petrol cap on or the wiperblades

rotten fish in the air intake

(Beware these cause damage)

Depends. Washer fluid will strip the paint off. A potato in the exhaust pipe is nice too. Vasoline the windshield. Take the plates off it and call it in stolen. Post it notes work too.

Paint pink racing stripes with water based paint(it will wash off). vasaline on windshield wipers, they wont know until it rains and then major smears and wont be able to drive. Rainbow stickers on the bumpers to signify they are gay. tie a walmart bag to the tail pipe, it will melt and smell aweful. gorrilla glue thier doors shut. Vaseline under the door handles. remove all fuses when they are not around. Just a few ideas

i prolly shouldn't say this but if you put bologna on cars and let it sit, its supposed to leave rings but that is more like vandalism instead of a prank. you could get soap bars and write stuff on their windows. such as call 1-800-???? for a good time or something silly like that.

Put a Kipper in their air vents, it may take a while for the fish to smell but its a great prank.

My father is a big prankster and he put a sign on another guy's license plate saying I Am Gay. The guy didn't notice and got pulled over.

Once my friends and I played tic-tac-toe with toilet paper on the roof of a friends car, while there was a lot of condensation outside so it stuck pretty good.