I remember we used to play a game between us girls, where we would all pretend to be a unicorn and each had a different color eyes. Each eye color had a different magic power - like blue had the power of water, brown of earth, ect.
When I look back now i think how imaginative that was for a kid and her friends to create. One of the girls that played with us, the one who made it up, is now a published fantasy writer.
http://www.outdoorns.com/reviews/lily.htm