Your horse is lovely! I am deeply envious. Though, really, I'll probably have to wait years before I achieve my own status as horse-owner as well. It's been way too long, though. I ought to at least see about lessons in my area.....

I'm throwing my vote in for Sun Dagger because that's a freaking awesome name and reason for it. Plus Dagger, Dag, or Sunny are all awesome nicknames.