Created with a scan of a coyote skull

Hinges not included but will be needed(screws, bolts, springs or elastic)
Theres a few rough edges and strange spots so please check those out before printing. I tried to fix them but getting a Boolean subtract was complex enough on its own.
Since there's no cheap skull dog models available, this is free and you can sell blank prints or finished costumes!
Scale 150-160%
Jaw shuts ok, be prepared to drill holes in the roof of the mouth if you want better breathability.