I had some batter leftover & made some mini cupcakes. Any ideas on how to deocrate them?? I'm thinking about doing poured fondant b/c I've never done it before.

Yep, you could do poured fondant. You could put a regular little swirl of frosting on there. You could add some sprinkles to the swirl. You could do half and haf. You could cut the fondant out to be the same size and lay it on there and then put a little flower on it or something. So many things you could do!