Simplified Origami Catapult
Paper projectile launching device! I found this model in "Origami in Action" by Robert J. Lang, where it is credited as a traditional design. I've tried to simplify the steps here, and (naturally) added a slightly-epic battle scene with Lego. :-) What else are you supposed to do with a catapult?
*Music: "Chasing Forever" by Jeicee (looperman.com), and "Five Armies" by Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0 http://creativecommons.org/licenses/b....