I don't know why my physio didn't suggest it to me earlier but I have stumbled upon jigsaw puzzles for therapy. The repetitive movements of sorting pieces has done my lymphedema arm the world of good....
I have a jigsaw program for my laptop and do jigsaws every day of my life. The best thing about this program is that there are some jigsaws that are free, you don't need space on a table to complete them and t it also allows you to make jigsaws out of any photos you have in your computer. If anyone is interested it's available at http://www.jigsawsgalore.com