maybe you can put together a basic kit of blocks where all the pieces are already cut and all she has to do is sew? You could write up easy-to-understand directions. Would be a great learning experience for her.
My elderly neighbor (87) is relatively housebound and has asked on a couple of times if I need any help. :-D So, now that I am back into my quilting, I am putting a pre-cut kit together for her of aunt grace.