My Funny Picture - I need to pull a prank on my cousin and brother while they're sleeping.?

I need to pull a prank on my cousin and brother while they're sleeping.?

The other day my little cousin (11 years old) was in the car and he was fake sleeping (yes, I am POSITIVE that he wasn't really sleeping). I took out some lip gloss and dabbed it on him. He started giggling while his brother (13) was encouraging us. Last night, at 1:30 in the morning they came in our room and drew all over us, our stomachs, legs, backs, faces. We're planning revenge and would like some ideas. We are going camping and are going to do it then so it can't make too much of a mess in the tent. Please refrain from telling me that I shouldn't stoop to their level because it's for FUN people, I'm not planning on cutting their hair or anything. Don't answer like that just for 5 points. So anyways, safe, clean and fun jokes are welcome! Thanks <3

Public Comments

place there hands in warm water while they sleep it is said that they will wet the bed
paint their nails, hands and toes, get some of the play hand cuffs and hand cuff the left hand to right ankle and watch them try to get up:-) anyway after you get done with the prank, if they sleep in a seperate tent, tie the zipper shut on their tent(lock em in it)
You could try doing them up with shaving cream, and taking pictures. You could try pinning their pants legs closed at the bottom, so that when they get up, and try to get dressed, they will not be able to put their pants on (another nice photo-op). There are many things that you could do...but beware of paybacks.
put them in an air bed and then, pull them to the nearest river...haha...let them float...or..put a lizar on their bottles...not knowing what you've done..or maybe...in night, put on a very long white cloth...an a flashlight, for effect, act like a ghost!!..holla....hahaha
tie them together