Thanks guys. Ryan, I use a hacksaw for rough cuts then a metalwork blade on a fretsaw for the more detailed cuts. If you go slow it doesn't throw up too much dust but I usually wear a dust mask anyway. Others who know much more will correct me but I've found gently simmering a freshly stripped bone for about 5 minutes removes enough oils that it doesn't gum up the tools without removing so much it becomes brittle.