I wouldn't mind a Normal/Ground rodent. It would make sense given the usual species that are most often used for the common Normal-type of the region.
In other news, I had my first X/Y dream the other night and I thought I'd share it with all of you. First off, the region wasn't your traditional region. Instead it was made up of multiple islands, an archipelago basically. The region name began with an "A" but it was too long to remember. Last two things I remember was that N was there and there was an underwater city.
It was all very colorful.