A skin mask is a mask made from the preserved flesh of an animal or, in most instances, another human being. Skin masks are usually made using sort of a curing process to prevent the removed skin from decaying. The fictional serial killer known as Leatherface is well-known for creating masks made from the skin of his victims. Other examples of skin masks can be found in A Nightmare on Elm Street and The Devil's Rejects.
The second Leatherface, Junior Sawyer, is known to have worn only one skin mask. This was from a victim named Gina. Her features are easily identifiable by way of the flower tattoo on the right side of her face. [1]