I plan to use some clear polyurethane to seal the antler and keep it from getting dirty.
Moving on to the next knife. These show some birch bark I was able to get from a guy up the street that had some branches falling off his birch tree. I flattened out a section of bark by soaking it in hot water and setting it under a plank and some weights. I cut sections at close to 2" by 2". This will make up the handle of my carving knife...