I have black bear that the ear butt clay went missing in action on. I am not sure if it fell out during mount up or what. However, it clearly isn't there anymore and I cant take the hide off to replace it. I was thinking of mixing bondo/resin weak, thicker and injecting it or injecting some silicone to harden in there. I would say its about half the clay that went missing. This is obviously a less than idea situation and figured someone has dealt with it. What have some others done?