I made this video two point five years ago:
I was going to post a series of videos of other people in animal masks. Then I found this guy:
Here's his youtube site: http://www.youtube.com/user/NorthFur
All his videos are of him opening and closing his mouth in awesome latex masks that he makes.
I want to be friends with him so we can make masks together and I can wear them at my shows. High-five, guy.