^
They could be non-traditional gundam's. For example, in Tenshi in Tokyo, Sasami tries to fight in a dangerous situation by entering a Ryo-oki shaped gundam.
Or they could be regular gundams with member themed weapons. For example, Erina could have a long ranged weapon of an energy ball that she propels with a device that looks like a golf club. Riho could have a liquid based attack that shots from an arm attachment shaped like a cider bottle. Masaki could shoot energy blasts in the shape of Hokkaido flowers.