This is a head-base that can be used to build a head for a toony dog costume. Fake fur can be glued on.
I did not include the lower jaw because It's faster (and cheaper) to make one with an aluminium-profile when to print it.
I just bend an aluminium rod and sculpt the teeth with Plaast (from http://www.plaast.de/) around it. http://i4.photobucket.com/albums/y144/Tioh/puppet_lower_jaw_zps5edda391.jpg