What are some good locker room pranks?

When i saw this question, i had to answer it. okay so here it is

1. this only works if people are HEAVy sleepers. theres the usual, you put make up on a MANS face. the point is not to make it look good. mix up all the colors, but the best part. make sure you take a picture of it. i did it once, it had me cracking

2. this i read somewhere, i dont remember where, so its not mine. when your at the beach, and someone is sitting on a towel, gets up to go somewhere. remove the towel, and dig a deep hole. replace the towel as it was. they'll get an unnexpected suprise when they sit down and relax........lol

3. get alone with the person you want to prank. dare them to place a glass of water each on the back of their hands. then walk out.

i have many many more, but just cant remember them