My Funny Picture - Need a good revenge prank. Non damaging, hard to clean up though, can't be re-usable. Help?

Need a good revenge prank. Non damaging, hard to clean up though, can't be re-usable. Help?

Some friends dumped rice all over my car. Jerks, had to vacuum it out of the engine and stuff. So I need to get my revenge, need ideas for something that wouldn't be monetarily damaging, that would be difficult and/or time consuming to take care of, and would not be able to be re-used against me (IE - rice again, they can just scoop it up and dump it back on my car). Any thoughts?

Public Comments

give them some red beans
butter there kitchen or bathroom floor so when they come in they bust there a**
Hit something of theirs with eggs. But wait until they have forgotten what they did to you.
go to the home supply store, get a gallon can of water washable glue, and a paint brush. Go mow your lawn and use the clippings to make a chia car.
go to BORED.COM and you can click on list of pranks. my favorite one was the nailpolish on the bar of soap. good luck, and have fun lol
try thick things like chocolate syrup or honey that should be pretty good
Buy a bunch of embarrassing bumper stickers, and have fun decorating.
Try putting a dead fish in the heater ducts. Or sprinkle some parmesean cheese into the carpet.....both smells are rancid, but the fish is a proven jewel.....I have used this one!
Have them stay the night and when your sure they're asleep, slip a pure chocolate bar down below, when they wake up, they'll crap themselves thinking they've pooped themselves!! I did it on my brother, and he didn't come down in the morning for hours but I could hear him moving about, he eventually came down and said 'Your an idiot', (censored for YA), either that or get a kipper from the fish market and put it under his seat, and in a few weeks it will absolutely reek. lol
banana in their tail pipe was a favorite in mine. or fish oil in the car.(will stink for weeks)
you've got some.... nice..... friends!
Nice friends. How about pouring cream of broccoli soup onto their engine. Just pour it through the holes in the bonnet and wipe it off. Won't do anything immediately, but will reek to high heaven after a few days.