Thankfully Sue didn't need any crazy costume gadgets for when her powers get out of control. Cuz her costume is the gadget. She turns invisible, they can still see her clothes. But what about her force fields? Maybe she should have an oxygen tank on her back in case she accidentally traps herself in a forcefield and runs out of air. As to that effect, they should all have oxygen tanks, in case Sue accidentally traps any or all of them in a forcefield which she can't make it stop. And she should have some kind of electric gizmo to zap herself into unconscousness, which will hopefully make all unwanted forcefields go away. Gritty realism!