Another idea: Take her to a gun store with a large selection. Have her feel and fondle until something fits "just right" (other than length of pull).
Then, either suck it up and buy her a shotgun of her own, brand spankin' new; or go look for a good used version of that gun.
Then you can set her up in reloading so both of you can go bird hunting and "skeet'n'trap", and all that fun stuff. She can reload while you check to see if the TV works okay, or if all's well on TFL.
Ah, togetherness!
, Art