Boomerang
Most of the boomerangs do not have the classical "L"-shape. The modern boomerang is special in that it will return to the one who threw it, if it is thrown correctly. However, some boomerangs do not return because their wings do not have the right profile. Most of the boomerangs are made for right-handed use. Left-handed people have to use other boomerangs that are mirror-inverted, or have to throw with their right hand.