I have been a little slow to get around to attempting this. I have a huge Moose antler. Wanted to turn some items with it. Years ago, I turned some white tail antler, but used a slow turning metal lathe, mill file and chain saw files to do the shaping. White tail antler can be made to look like nicely aged ivory. Also turned a powder horn plug from a piece of solid horn tip. Antler and horn buff up very nice and shiny.. On a census record one of my ancestors was listed as a bone turner. Haven't tried that yet either. When i lived in Miami, I saw urn style planters made from coral Not sure if they were turned or not.