As Young Link, take out a Deku Stick. Jump off of any ledge, and without Z-targeting, swing the stick into a wall while in midair. The stick will break, but Link will continue to hold it. It can be used as a club, though several attacks (particularly horizontal swipes) cannot be performed, leaving it unable to cut grass, kill Deku Babas, or perform certain other tasks. Swimming or using any item other than the Ocarina will get rid of the item.