A slingshot or catapult is a small hand-powered projectile weapon. The classic form consists of a Y-shaped frame, with two natural rubber strips or tubes attached to the upper two ends. The other ends of the strips lead back to a pouch that holds the projectile. One hand holds the frame, while the other hand grasps the pocket and draws it back to the desired extent to provide power for the projectile—up to a full span of the arm with sufficiently long bands. Other names include catapult (United Kingdom), peashooter (United States), gulel (India), getis / guleli (Nepal), (South Africa), or ging, shanghai, pachoonga (Australia and New Zealand), Tirador (Philippines). Use and history Slingshots depend on strong elastic materials for their projectile firepower, typically vulcanized natural rubber or the equivalent such as silicone rubber tubing, and thus date no earlier than the invention of vulcanized rubber by Charles Goodyear in 1839 (patented in 1844). By 1860, this "new engine" had established a reputation for use by juveniles in vandalism. For much of their early history, slingshots were a "do-it-yourself" item, typically made from a forked branch to form the "Y" shaped handle, with rubber strips sliced from items such as inner tubes or other sources of good vulcanized rubber, and firing suitably sized stones. While early slingshots were most associated with young vandals, they could be effective hunting arms in the hands of a skilled user. Firing projectiles, such as lead musket balls, buckshot, steel ball bearings, air gun pellets, or small nails, a slingshot was capable of taking game such as quail, pheasant, rabbit, dove, and squirrel. Placing multiple balls in the pouch produces a shotgun effect (even though not very accurate), such as firing a dozen BBs at a time for hunting small birds. With the addition of a suitable rest, the slingshot can also be used to shoot arrows, allowing the hunting of medium-sized game at short ranges. While commercially made slingshots date from at latest 1918, with the introduction of the Zip-Zip, a cast iron model, it was not until the post–World War II years that slingshots saw a surge in popularity, and legitimacy. They were still primarily home-built; a 1946 Popular Science article details a slingshot builder and hunter using home-built slingshots made from forked dogwood sticks to take small game at ranges of up to with No. 0 lead buckshot ( diameter). The Wham-O