Does she like pets? Maybe a kitten to keep her company or a new puppy? I know they can be work to take care of, but also a lot of company...
Also, I am a scrapbooker, and any time my family gives me stuff to use, or pages already done to add to my books, I love it.
I also quilt, and a memory quilt with pictures of the family would be something she could show off and snuggle under while watching TV and enjoy for years to come.
Does she exercise much? Maybe membership to a local gym or take her to the senior center to make new friends. A camera is also nice, she can document the things she has done and capture moments of everything she plans to do.