Pop Tarts Xmas Reflective Flower Packaging 3.5 Mylar Bag *Empty Bags* (#C3) Items are Non-Refundable and Non-Exchangeable. Pop Tarts Xmas Reflective Flower Packaging 3.5 Mylar Bag *Empty Bags* (#C3) In its basic form, Mylar® is a clear material made from polyester resin. The silver effect comes from a lamination to ...