na, you only need a coke can, unravel it to use as a blanket, signal to helicopters by refecting the sun using morse code, cut a bit off to use as a scalpel to do emergency ops, cut of a slither to make a needle to stitch yourself up, when the your food runs out press it into your thigh to cut out a burger for food, and then of course it can be used as a cooker to cook the burger.