Know any good church camp pranks?

Okay, so in 2 days I'm going to church camp at Camp Gilmont in Gilmer,TX and I need to know a bunch of hilarious pranks to pull on the girls in my cabin and an extra devious one to pull on the boys for revenge!Please tell me a bunch of good pranks quick! I only have two days to plan ahead! (ps please don't tell me the pranks like sticking their hand in warm water or putting stuff in their shoes or stuff like that!)