Turbine's announce a "Design a Horse" contest for Lord of the Rings Online:

LOTRO fans, it's time to show us your artistic and creative skills: we're giving you the opportunity to submit your very own design for a horse which could be taken and implemented into the game as a player mount in a future content update.

You can read more details about the contest here. If you're interested, you have until July 28 to get your sumbission in!