ylene and polypropylene and copolymers thereof; polystyrenes and copolymers thereof; polyesters and copolymers thereof such as PET and polyethylene naphthalate (PEN); polyamides and copolymers thereof; polycarbonates and copolymers thereof; and so on and so forth; metals including, for example aluminum, tin or steel; papers including untreated, treated, waxed or other coated papers or laminates th