The horse modding skin is really cool. Since I love horses and ride them A LOT it was nice to see a horse every time I played on my DS.
By the way, I gave the DS five stars, instead of the modding skin becasue the modding skin isn't a game. (Do you get me?)
But, I found it really cool. JUST BUY IT! It also separates your DS from other people's and is better. There isn't really much to say about the modding skin, just no one else would probably have it and it makes you DS look interesting.