Humankind has finally found a way to reuse old plastic bags! After you've done using them for the purpose they've been made for, store them until you gather up the number you need. And here's the story: you're gonna iron them! That's right! By doing so, you’ll get sewing-like material.
These are the instructions, and next time you'll find out about all kinds of cool things you can do with it!
Extra tip: if you're worried about the patterns or color of your material, use the same type of plastic bags. If you want a funky, unpredictable result - mix all sorts of bags together!