Here's my first skull project using alot of the information from this thread (thanks to all!). I put this together as a Christmas present for my nephew and part of the gift was that he had to figure out where the teeth went and then Elmer's Glue the teeth in. I didn't get a chance to take a pic since.
Short story - shot red fox, cleaned skull, 3 day soak in water, simmered for about 1.5 hours in Dawn and Sal Soda solution to degrease. DO NOT boil, as this degrades the bone and will result in cracked teeth and also most or all of the teeth, like the tiny ones, will fall out and you will have to pick them out of the crud. Sal Soda causes many of the connective tissue bits to "gel" up and they are easier to remove. If you like to see the nasal cavity bones, such as on deer, you may need to simmer again or use beetles/maceration method. Pick off all of the bits and pieces of meat, etc using dental picks. Rinse, dry, about 24 hour soak in Baquacil Oxydizer (27% hydrogen peroxide pool chemical), rinse, dry, two coats of Krylon Matte Clear, glue in smaller teeth. Sand plaque, 3 coats polyurethane top, 2 coats poly back, made stencil for back, spray painted black, removed stencil, another coat of poly, apply three silicone feet on back, drilled hole and installed wooden dowel on front (skull brain stem hole slides down dowel perfectly). Nephew glued in remaining teeth.
I was pretty happy with the way it came out despite making a few mistakes here and there. Couldn't have done it without a friend who let's me hunt his properties AND gave me a few of these plaques from wood cut off those lands. Can't wait to try it again.
(pics updated Dec 2020)Skull and teeth after whitening (it was missing the #3 incisor and molars did not come out during simmer)Skull overturned and teeth (it is completely white, shadows caused color inside skull.)
*Note far right where dowel easily slides into brain cavity hole.Jawbone and teethCurly Maple PlaquePlaque and skull (minus major teeth)Plaque reverse, skull and major teeth ready to be glued in