Thats the way I do spurs. Make sure you push the marrow out of the bones with pipe cleaner or some wire. After it looks done, I stick the bone in a dixie cup of Boraxo for a few days.

By the way, I don' t even take the hair and hide of my bucks skull caps. Just hit it all good with that Boraxo and she' ll stay on there. Looks better, if you mount it, than one of those goofy velvet skull covers.

Tyler