Atlatl
It was common among Australian Aborigines, who is known by different names (Woomera [woomera], vommera, vammera, amer, purtandzhi) in Papua New Guinea, at the coastal peoples of the north-east Asia and North America, on Sakhalin have Nivkhs and different America regions (such as the atlatl in Mexico). Typically spear throwers - it sticks or tablets, with emphasis at one end and a handle at the other. Mexican atlatl different two rings on the handle - stops for the index and middle fingers. And among the Aleuts, Eskimos and Chukchi they are rather complicated and quite modern, ergonomic shape provides reliable retention of guns wet and greasy hands. Similar spear throwers are available and the Indians of the Northwest Coast of North America. Australian Woomera has the shape of an elongated lanceolate leaves, usually curved so as to form a receptacle. In addition, its handle is inserted flint adze.