I think it's a fair idea :3
In my opinion, Sparkle animals aren't THAT big of a deal. Usually, they just run past me and I think nothing of it. I'm used to seeing those sort of characters. xP But if they bother you that much, you can block them or something.
I mean, maybe it would like.. add too much to the character selection screen? I find it simple and well organized as it is now, and adding more might make it too much and hard to manage, but if the idea can be worked out well, it'd be awesome :3