Rubber mask
A rubber mask is a mask made of rubber. Typically, these are made of latex or silicone rubber and designed to be pulled over the head as a form of theatrical makeup or disguise.
The theatrical makeup used by Michael Crawford when he played the Phantom of the Opera started with a latex skullcap. More latex strips were then added for the disfigured face. The latex was then covered and coloured with cosmetics for the full effect.
