Boomerang
The boomerang is the curved throwing stick of the Aboriginal peoples of Australia, carved from hardwood and used for hunting, fighting, digging and ceremony. Returning boomerangs are shaped with a twist across the wings so that they curve in flight and come back to the thrower, while heavier non-returning forms are hurled flat and low to strike game or an enemy, and the same shapes were used as clapsticks, digging tools and fire-sticks. The weapons are sometimes engraved or painted with the designs of the maker's clan. The returning boomerang is one of the oldest known engineered tools and was