Extending the concept of reuse even further, these bags are made from old plastic shopping bags. When fused together with an iron, the plastic bags turn into a durable and easily cleaned "fabric." No sewing skills are necessary; all that's required are plastic bags, parchment or wax paper, an iron, and scissors.
Etsy also has a video tutorial on plastic bag fusing, and if you are handy with a sewing machine, you can sew the plastic "fabric" into all sorts of bags and other crafts.
Related: Gallery: 9 Cool Lunch Boxes and Bags
(Image: Natural Home)