My old wallet was falling apart at the seams, so I made this wallet out of some old jeans:
The coin purse part is made from the front inside pocket of the jeans (the jeans came with the embroidery), and the front zipper.
The little fastener is made from one of the belt loops, with a new snap closure (which I need to re-sew soon)
The credit card/id holder is made from a cool shirt that was way too small for me, but I thought was maybe see through enough to work.
The sewing that I added was all by hand. It still has a few issues--like the zipper is too tight, so it's hard to close--but I like it anyway.