Right, you mentioned ear attachments. That calls to mind the painted tin masks that were made for the seriously disfigured soldiers of World War I, before reconstructive plastic surgery was better researched and developed. The masks had to appear lifelike but were immobile and had to have loops for hanging them on the ears (if there were still any ears) or glasses as part of the mask so they could be worn with it, or new facial hair, etc.
There was a character in boardwalk empire just like that. you’d see him from one profile and he looked perfectly normal but then the camera would swing around to the front and you’d see the horrid mask covering the whole right side of his face. it was extremely compelling and the character (played by Jack Huston) was very poignant.