With Susan's post probably in the back of my mind, I thought that the pockets could be recycled into a little pouch. By good fortune the fly zip was just the right size too.
After a false start ...
(sewing the zip on upside down...)
My youngest and I sewed this (I steered, she drove):
It has a central zipped compartment and - obviously - two outside pockets! It came with its own embellishment, otherwise we would have decorated it ourselves. Next time I'm recycling a pair of jeans I'll make another with a shoulder strap, and try covered zip ends.
(If you're looking for the Slow Bloggers linky party, please go here)