I'd throw my OCs in, but as I said earlier, Shooting Star would only be ready for aliens at the end of Infinite Stratos, after they've gotten all their plots done and mid season upgrades broken into.
That's about... 3 years from canon present.
They can be used now anyway, Sherry, Marina, Hokusui, Three and Karon, just that they won't be as awesomesauce as later.
EDIT:
Quick patch to Karon's profile, now that I found an image fitting of her. And yes, the Orimura Imouto is strong with this one.