making Happy, sandwich and snack bags

We are addressing no waste lunches at our school. My husband makes the lunches and he won't give up the wax paper, so I am selling my own version of the reusable cloth sandwich bags, pure and simple. There are a lot of cloth sandwich bags out there. Most of them are made with velcro, Pul or nylon, all are petroleum products. I am interested in offering them with nylon linings as well. I will see if I can get some nice quality reclaimed. I don't consider my self fanatical about anything. This is just my art and my passion, to explore design excluding the toxic parts. I have so many cute fabrics for these, you can purchase them at my etsy shop.