I made my MIL a couple of 10x10 bags that hung on the side of the bed using Velcro -- she didn't have a cell phone but used it for her glasses, Kleenex, nail file, etc. Fast forward 15 years and I was facing knee surgery so I made a pair for myself to hold cell phone, kindle and chargers. The folks at the hospital and at the rehab/nursing home loved them and had the folks who make things for the patients come look at what I did. I made them out of a double thickness of home dec fabric because it is heavier. One was just a big pocket and one has smaller pockets for pens and sticky notes (and I have to say I used the sticky notes a lot). I tried to upload a picture but it failed. The two bags fit across the bar of the walker.