Hey Tree,
I suspect that you run into some pretty interesting slabs of timber in your line of work. Maybe polish up a slice of burl or something and do your elk yourself.
Here's a mulie done up with some padded buckskin (his buckskin actually) covering the skull-plate, and the .270 casing from the cartridge that claimed him imbedded in the wood - beside some wild turkey feathers thrown in for good measure! The pseudo-native design antler wrappings are just done with coloured sharpies on buckskin thongs.