Do we even wanna know what granny planned on doing with them? But you should have asked her to hold them up so you could take a picture of her.
My first pair of skis came from a thrift store in Phoenix. I'd just learned how to ski and found them for I think $5. They were Yamahas and needed new bindings, but were otherwise in good condition and they served me well for several seasons. I think they might have been the first thing I personally bought at a thrift store.
Here's the last (a 24x36 print of an original, it needs new glass but it was $10):
