For your story .. i love the story and the explanation on why tehy keep there antlers ... If you wanted to use rudolf .. there is a very fun way to add in his glowling ability i found a pic once of rudolf .. and not only does his Nose glow .. But another part of his anatomy also got big and red and lite the way through the night .. i think that would be fun and you can even talk about how the light fades in and out as he gets excited and in pain ..