Hone Hone no Mi

The Hone Hone no Mi (ほねほねの実, Lit. "Bone-Bone Fruit") is a type  that allows the user to create and manipulate bones. It is said to lie somewhere in the around. Pirates of the Black Widow crew have set out to find the fruit. The one to eat the fruit becomes a Skeleton Human (はっこつ間, Hakkotsu Ningen).