Can you drink from a piece of paper? Give partygoers a crash course in roughing it in the wild with this easy-to-learn survival skill. Collapsible cups are standard camping gear, but with a piece of paper and some origami know-how, young adventurers can create their own drinking vessel in a pinch. Give kids a square of paper and printouts of the directions. Be sure to have a canteen nearby for testing the finished products. Check it out here.