is a tool historically used for hunting, as well as a sport, and entertainment. They are commonly thought of as an Australian icon, and come in various shapes and sizes.
Tanya uses a boomerang in Mortal Kombat 4 and Mortal Kombat Gold.
In Mortal Kombat Gold, Kitana uses a weapon called a "flying blade" that functions similarly to a boomerang.
Tanya's Boomerang as it appears ingame.