Signs With Removable Letters
Next time you come across one of those public signs with removable letters. Rearrange them around to spell something else. Be creative. Change a Doctor's sign to read: Dr. Jones We Break Bones here or something similiar

Why are my eyes burning?
Crush up some hot peppers. Then use the juice and smear it on door knobs, hand rails, or any other place that people put their hands on. They will not know they just touched hot peppers...until its time for them to rub their eyes...OUCH!

Shopping Cart Prank
While at the local supermarket, slip items into peoples carts when they aren't looking. The more embarrassing the item, the better. Some funny ideas include maxi pads or makeup for guys or condoms and lubricant for women. Sometimes people won't notice til they reach the checkout lane.

Hot Sauce On Toilet Paper
Go into a public restroom and rub some spicy hot suace on the toilet paper. Don't rub too much or the victim will notice and trash it.

I am blind! ...move please!
While taking your dog for a walk, also take a walking stick along and some shades for your eyes. Then pretend you are blind and start bumping into people and objects.

Pancake Stack
Take all your leftover pancakes that nobody is going to eat anyways and stack them in the middle of the driveway.

Dollar On The Ground
Leave a dollar bill on the ground in a public place with a pile of poop on it. See if anyone will take the bait.

Baby Ruth In Public Pools
Throw a couple of Baby Ruth candy bars in public swimming pools. People will be disgusted and think someone pooped.

CSI
Place caution tape all around someone's house or yard so it looks like a crime scene. To make it look even more real, use chalk to outline a dead body on the sidewalk.

Laser Pointer Fun
Annoy people at the local movie theater by pointing a lasre pointer up on the movie screen.