Collected a few skulls over the past few years from bucks found dead after the season. I've been kicking around the idea of cleaning them up and mounting them. A couple are already pretty clean and just need some brushing up, but the others have dry rotted skin on them. Would beetles or boiling be best for the job here? I've read a little bit about this and haven't seen anything that says whether or not the beetles will still work on dry rotted heads. Any tips and advice are welcome.