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

full_context: Document 1: List of Child's Play characters: Child's Play is an American horror franchise that consists of six slasher films and numerous comic books. The main antagonist is Chucky, also known as Charles Lee Ray, the notorious Lakeshore Strangler, whose soul was passed into a "Good Guy" Doll. Chucky pursues a variation of victims in each installment, usually with the purpose of possessing the body of a new human host. Recurring characters in the series include Chucky's first target, Andy Barclay, and his wife, Tiffany.
Document 2: Freddy Krueger: Frederick Charles "Freddy" Krueger is a character of the "A Nightmare on Elm Street" film series. He first appeared in Wes Craven's "A Nightmare on Elm Street" (1984) as a burnt serial killer who uses a glove armed with razors to kill his victims in their dreams, causing their deaths in the real world as well. In the dream world, he is a powerful force and almost completely invulnerable. However, whenever Freddy is pulled into the real world, he has normal human vulnerabilities. Krueger was created by Wes Craven, and had been consistently portrayed by Robert Englund since his first appearance. In the 2010 franchise reboot, he was portrayed by Jackie Earle Haley. In 2011, Freddy appeared as a playable character in the video game "Mortal Kombat". Over the course of the series, Freddy has battled numerous survivors including Nancy Thompson.
Document 3: Mosquito (film): Mosquito (also known as Blood Fever) is a 1995 science-fiction horror film directed by Gary Jones. The film features actor Gunnar Hansen, who played the character Leatherface in the 1974 horror film "The Texas Chain Saw Massacre", along with Ron Asheton, lead guitarist for the band the Stooges. The film has earned a cult following since its release.
Document 4: Leatherface: 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.
Document 5: Chucky (Child's Play): Chucky is the main antagonist of the "Child's Play" horror film series. Chucky is portrayed as a notorious serial killer whose spirit inhabits a fictional "Good Guy" doll and continuously tries to transfer his soul from the doll to a human body. The character has become one of the most recognizable horror icons, often mentioned alongside Freddy Krueger, Jason Voorhees, Ghostface, Leatherface, Pinhead and Michael Myers, and has been referenced numerous times in pop culture. In 1999, the Chucky character was nominated for the MTV Movie Award for Best Villain for the film "Bride of Chucky". He was created by writer Don Mancini and is portrayed and voiced by Brad Dourif in both live-action and voice-over.
Document 6: The Texas Chainsaw Massacre 2: The Texas Chainsaw Massacre 2 (marketed as The Texas Chainsaw Massacre Part 2) is a 1986 American dark comedy slasher film directed by Tobe Hooper and serves as a sequel to "The Texas Chain Saw Massacre", also directed and co-written by Hooper. It was written by L. M. Kit Carson and produced by Carson, Yoram Globus, Menahem Golan and Hooper. Starring Dennis Hopper, Caroline Williams, Bill Johnson, Bill Moseley and Jim Siedow, the plot follows a radio host victimized and captured by Leatherface and his cannibalistic family while a former Texas
Document 7: Billy Bob Thornton: William Robert "Billy Bob" Thornton (born August 4, 1955) is an American actor, filmmaker, singer, songwriter, and musician.
Document 8: Bill Johnson (film and television actor): 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".
Document 9: Tobin Bell: Tobin Bell (born Joseph Henry Tobin, Jr.; August 7, 1942) is an American actor. He is best known for his portrayal of John Kramer / Jigsaw of the "Saw" film series. After years of work doing stand-ins and background work on films, he got his first major acting job in "Mississippi Burning" (1988) and went on to star in made-for-television films and guest star in television shows throughout the 1990s.
Document 10: The Texas Chainsaw Massacre: The Beginning: The Texas Chainsaw Massacre: The Beginning is a 2006 American slasher film and a prequel to the 2003 film "The Texas Chainsaw Massacre". The sixth installment in "The Texas Chainsaw Massacre" franchise was directed by Jonathan Liebesman and co-produced by Kim Henkel and Tobe Hooper (co-creators of the original 1974 film). The film went into release in North America on October 6, 2006. The film's story takes place four years before the timeline of the 2003 film. It stars Jordana Brewster, Diora Baird, Taylor Handley, Matt Bomer and R. Lee Ermey.
Document 11: Jigsaw (Saw franchise): John Kramer—known as The Jigsaw Killer or simply Jigsaw—is a fictional character and appearing in the "Saw" franchise as the main antagonist. Jigsaw made his debut in the first film of the series, "Saw", and he later appeared in "Saw II", "Saw III", "Saw IV", "Saw V", "Saw VI", "Saw 3D" and, eventually, "Jigsaw". He is portrayed by American actor Tobin Bell.
Document 12: Bill Paxton: William Paxton (May 17, 1955 – February 25, 2017) was an American actor and film director.
Document 13: Bill Johnson (center): William Levi Johnson, Sr. (September 14, 1926 – January 7, 2011), known as Bill "Tiger" Johnson, was a professional football player and coach. He was born in Tyler, Texas, where he was raised by his single mother and five older siblings. Among his siblings was older brother Gilbert Johnson, who played quarterback at Southern Methodist University with the iconic running back Doak Walker. Bill was a legendary football and baseball star for Tyler Junior College and Texas A&M University, and graduated from Stephen F. Austin State University. He played center for the San Francisco 49ers from 1948 to 1956.
Document 14: List of Saw characters: The "Saw" series of horror films features a large cast of characters created primarily by directors and screenwriters James Wan, Leigh Whannell, Darren Lynn Bousman, Patrick Melton, and Marcus Dunstan. The series focuses on the character of John Kramer (Tobin Bell), the "Jigsaw Killer", who seeks out those he considers to be wasting their lives and subjects them to torturous and lethal traps, referred to as "tests" and "games", in an attempt to make them appreciate living. The series comprises eight films: "Saw" (2004), "Saw II" (2005), "Saw III" (2006), "Saw IV" (2007), "Saw V" (2008), "Saw VI" (2009), "Saw 3D" (2010) and "Jigsaw" (2017).
Document 15: Horror icon: A horror icon is a person or fictional character that is considered to be significant to one or more genres of horror such as film, literature, or video games. Examples of people considered to be horror icons include directors Stephen King, Kiyoshi Kurosawa, Roger Corman, and Wes Craven, and actors Vincent Price, Barbara Steele, Lon Chaney and Lon Chaney, Jr., Boris Karloff, Bela Lugosi, Robert Englund, Tony Todd, Tim Curry, Brad Dourif, and Christopher Lee. Fictional horror icon characters include such as Dracula, Gill-man, Frankenstein's monster, Michael Myers, Freddy Krueger, Jason Voorhees, Chucky, Candyman, Leatherface, Pennywise the Dancing Clown, Pinhead, and The Mummy.
ground_truth: human skin