I made some many years ago for a group home. We drew a simple pattern and cut them out of the rubberized waterproof fabric that you can put in baby cribs. There is no fraying, so it's very easy, cut out your shape, and then sew velcro on the back for a closure. We made them long and wide enough to cover the persons front. I've seen them out of hand towels and also bandanas. I bet you'll get lots of responses here! Good luck. (sorry your mom is doing poorly, that's a hard situation to deal with).