Pocket Shot Slingshot
Sure, one can design a complex slingshot that folds up small for easy carry. But chances are they won’t even come close to the size of the Pocket Shot. Composed of a latex pouch and a high impact ring to grip, this easy to use slingshot fires projectiles — namely, anything that fits — at speeds of up to 350 feet per second with surprising accuracy. The pouch folds in to make the contraption even smaller when pocketed, and a watertight cap holds in ammo until called upon.
Grab one at Amazon – $25