I think the round glass, if she can slide it easy enough over the newspaper or the like....or what about the type that crafters use, it's on astand and you hold what you are working on underneath it? This may sound odd, but what about something along the lines of the Nintendo DS systemms...where you can use a stylus pen and play brain games etc? They have games for all ages. Does she like puzzles or word search etc? You coulsd tear the pages out of books you buy so they lay flat, easier for her to work on. How about books on tape? The no hobby thing is hard, maybe she woud become interested in something new like the internet/blogging etc...or does she have a DVD player for favorite movies or the dvd's that show the ocean/space/ travels etc. Do they have a pet? Maybe a new pillow for her bed if they have a pet they allow up to her. An item my mom uses a lot is the squishie pillows (bed, bath and beyond has them) they are lightweight so even weak strength can move it to where they want, and they conform to the body well and they are small so easier to fit into tighter spaces. being bed ridden can leave one prone to bed sores, ask her aide if there is anything out there to relieve pressure. I know there are mattresses but that gets invovled and certainly would need medical approval. Does she like to have her hair done? Maybe there is a beautician who would come to the house, I bet that woudl perk her up. I will keep thinking, and how nice of you to try amd get useful items.
I would alos post of on the DISabilities board, lots of great folks over there!