See my post on your coon skinning thread.

Your wall hangers will look best as "ironing boards," so case them, sew the legs closed, treat the face well, trim the belly fur, board them flat in an ironing board shape.

Coyotes and fox are cased and stretched over an ironing board shape. If you want to REALLY look authentic, THIS is the shape you should be hanging on the wall, a simple cased and stretched hide. Use a wider board on longer bodied animals to give them a good proportion, instead of looking like torpedoes.