Fun project that helps you!
Back in 2013 or 2014 I started making these little pillows with velcro on them. I used it for driving. When I drove, my knee rested on the center console and it was causing me pain. I stuck one of these to the side and it cured my pain real quick.
I'm in talks to have these manufactured for sale; however, If you can't wait until they hit the shelves, I've included instructions on how to make them