AK, I've used the palm/pan for handles on a couple of my knives way back!
It always bugged me to see so much real nice antler go to waste so I cut it down close to the size I needed and then halved it on a bandsaw. Boom, you have matching scales for a knife!
One thing to watch with it though is you'll be exposing the softer inside, marrow I guess, and on some of the antler it's real soft and porous and it's best to send it out for stabilizing. On some you can get by with soaking it with super glue but I think you're much better off having it stabilized!