Many everyday items contain hidden plastics, even if they don’t look like typical plastic products. * ✅I. Cigarette butts – Filters are made of cellulose acetate, a form of plastic. * ✅II. Eyeglass lenses – Usually made from polycarbonate or CR-39 plastic, not glass. * ✅III. Car tyres – Contain synthetic rubber, which includes plastic-based polymers. All three items contain plastic.