I take it she's in a wheel chair? No reason not to hit the gym then.
My mate Dave trains his ass off in the gym (well he'd train his ass off if he had one - Pelvis and everything below has been removed).
Personally I think this is a slightly extreme way to get out of doing squats but then he's a crazy guy.
Anyhow, he does lots of DB work - Shoulder press, flies, curls, tricep extentions. All those things could be done at home too.
There's also a grappling rope that he works out on and the bench press machines come in handy too.
We are working on a design for a wheel chair that he will be able to tip backwards so his body is horizontal so he doesn't have to get out of his chair to do bench press. It'll also have a harness to hold him in place while he does lat pulldowns and cable rows. He's got fairly strong now and can't stretch himself with these exersises as he just pulls himself out of the chair at higher weights.
Bands would be good too for all sorts of things.