I'm with Mel on this, you must not have many urban deer in San Diego eh?
Round here they are literally everywhere. I can understand the desire to keep some of the "antler" in the bodies. Really just need the antler tips or short prongs.
Good deal that they were already drilled, that stuff can really foul the air and smells like stink on a monkey.
Can't think of any antlers that would make for perfect pen bodies, maybe antelope are small enough to keep the outer texture?