Question: What are the masks that Bill Johnson's character in the 1986 horror film made of?

Related documents: [0]  [DOC] Leatherface is a character in "The Texas Chainsaw Massacre" series of horror films and spin-offs. He wears masks made of human skin (hence his name) and engages in murder and cannibalism, alongside his insane family. Leatherface appeared in the first film in the series (1974) and in its six subsequent continuations and remakes. Wisconsin killer Ed Gein, who wore a mask made of human skin, was reportedly the inspiration for elements in the original film. He is considered to be the main antagonist of the franchise because he drives most of the plots and appears in all of the films even though he takes orders from his older family members. [END] 
[1]  [DOC] Bill Johnson (born December 16, 1951) is an American actor, known for his role as "Leatherface" in the 1986 horror film "The Texas Chainsaw Massacre 2". [END]  
Answer: human skin
human skin