Some are lined with white cotton fabric:
And some are lined with hot pink rip-stop:
All have velcro closure, and are washable. And all fabrics were from my stash. These are so incredibly easy to whip up, that I can't wait to make our familiy a whole mess of these. I winged these, constructing them as I would my zipper pencil pouches (just without the zipper.) So easy! Here's a tutorial that's similar to how I did mine, if you'd like to make some for yourself!
I'm looking forward to your comments, suggestions and ideas on my list and stash-busting efforts!