I made this bag from an old T-shirt I had that had gotten too thin to wear. I love it too much to get rid of it, so I turned it into a bag. It has a lining from pink T-shirt fabric, and between the shirt and the lining is an old thin quilt that I used to make it stiffer and thicker. The way I sewed it is basically the way you sew a little coin purse with lining and a zipper, with a few modifications of my own. There's an inset pocket in the lining with a zipper. That was the hardest part. The strap was sewn on after.