A guy that I work with was telling me the other day that he had a broken piece of deer antler in the back of his pickup truck. I talked him into giving it to me to "play" with. Wow...that stuff is hard! I only made a small 7mm key ring out of it so far. I'll give it to him tomorrow. It was hard drilling through it because of the curve of the piece and then turning it was tough as well. I sharpened my bit twice but it was just some tough material. I think I may have enough material left to make a nice pen but I don't have a good kit right now (need to order). No photo..it was just a simple straight keyring. I used the same wax that I use on my pens "Shellawax" ...what would you use?