I made some from the surface of nicely textured elk antler I got from Squeaky McMurdo instead of using cross section cuts, they are more trouble, but worth it I think, in the nicer look. If I can teach my kids to do it they may become available ? Probably not quite as inexpensive as some of the links though. Thanks for the great links, Puffer !

I really like antler buttons. Horn comes in a multitude of colours as well, if one wants to look. Of course silver is nice too, but expensive. The chrome ones are kind of bright for my taste.