The script for "Part 3" called for Jason to wear a mask to cover his face, having worn a bag over his head in "Part 2"; what no one knew at the time was that the mask chosen would become a trademark for the character, and one instantly recognizable in popular culture in the years to come. During production, Steve Miner called for a lighting check. None of the effects crew wanted to apply any make-up for the light check, so they decided to just throw a mask on Brooker. The film's 3D effects supervisor, Martin Jay Sadoff, was a hockey fan, and had a bag of hockey gear with him on the set. He pulled out a Detroit Red Wings goaltender mask for the test. Miner loved the mask, but it was too small. Using a substance called VacuForm, Doug White enlarged the mask and created a new mold to work with. After White finished the molds, Terry Ballard placed red triangles on the mask to give it a unique appearance. Holes were punched into the mask and the markings were altered, making it different from Sadoff's mask. There were two prosthetic face masks created for Richard Brooker to wear underneath the hockey mask. One mask was composed of approximately 11 different appliances and took about six hours to apply to Brooker's face; this mask was used for scenes where the hockey mask was removed. In the scenes where the hockey mask is over the face, a simple head mask was created. This one-piece mask would slip on over Brooker's head, exposing his face but not the rest of his head.