Going camping?!?!?!?????????????????…

Im going camping with my friend and her youth club in two weeks time (it lasts 3 nights and we need to cook r own food) but i dont know what to bring. Ive got all the basics (snacks and cooking equipment sleeping bags, tent, torch) but i dont know what else. also i want to prank the other people so any ideas for pranking some people in tents? (i dont know them! lol)