A neighbor of mine has been making lap quilts for wheelchairs but she decided to round the bottom corners so that wouldn't get stuck in the chairs. These lap quilts have a kangeroo pocket to hold a cell phone and other items. Then she's also making bags to go on walkers. They velcro to the front section of the walker and also have a number of sections to hold a water bottle, cell phones, etc. She's doing this all on her own, paying for it out of her own pocket. I've offered her fabrics from my stash to help her out and she's found some she liked plus it helps me out to to use up my stash.
The last time I was over at her house, she had around 15 bags laying out on her bed with the straps, zipper, etc. to go with them. She also had a stack of lap quilts ready to go also. She's such a trooper.