The Scrumma Jawbone was a shooting range on a shallow arm of Lake Paonga on Naboo. It was set up by General Tobler Ceel to train his militiagungs. The targeting system at the Scrumma Jawbone consisted of floating bull's eyes that could dive in and out of the water on command, and methane-filled gasbags. Ceel's Gungans were trained to become proficient with such weapons as the atlatl, cesta and arbalest, all of which were used to hurl boomas at targets. The local swamp creatures were known to give the Jawbone a wide berth.