Cindy of My Recycled Bags sells her cool crochet bags and products made from recycled plastic bags. The site is full of information and resources about crochet and other crafted recycled bags. Her tips open up your creativity to incorporate plastic bag as yarn projects for almost anything. Cindy says, “Speaking as a crochet crafter, I have found that many existing patterns can be made using recycled plastic bags as yarn. Just remember to use a large hook and check your gauge on the product. Purses, rugs, placemats, and totes are normally excellent products using plastic bags.” Link.