Hopefully, this will help you decide whether to make or buy a mask using taxidermy replacement heads. At the least, it will help you understand how they work.
"Aren't they too small?"
That depends on the species. It will be common sense to not order a fox replacement head for use in a mask, as it will be the size head of an actual fox. My recommendation is to use a large ungulate head, such as this one. http://www.vandykestaxidermy.com/CDH-650-P1359C1643.aspx If a deer is not the species you're trying to create, simply carve out the form as desired. Replace mass in needed areas with clay. I use Critter Clay in ALL of my projects needing cla