Shins

 are an item in Torment: Tides of Numenera. They are the money of the Ninth World.

Description
Shins are usually metal, but can also be made of glass, plastic or other substances that have no name. Some are jagged bits of interesting material or small, coin-like objects (such as highly decorative buttons from a machine), while others are properly minted by nations or cities, and stamped, with writing and/or images.