nothing. I tried to do what stuart freeborn did. I cut out a face plate template. I then used an old Hasbro imperial officer head and cut out his face and his face was my template .I then removed the eyes. then I used the Hasbro furry chewie and cut out the ugly face and used the part like a wig. then the hardest part was shaping the bridge of the nose and the muzzle which I guess HT did wrong. I then cut small pieces of hair from the Hasbro Chewbacca and starting laying them down one piece at a time to I got it how it looked on the original tried to anyways. and that`s how I got the results. the head is hollow inside like a mask I could put it over a head of my choice and the jaw moves as well