I do not see why not. If you cut out the middle of a 2 liter bottle, that would probably give you enough material. Just cut around the top and bottom and then make a vertical cut. You could use a heat gun to shape the plastic into a visor shape and then cut to fit like any other visor. This would yield a clear visor, of course. You could use that VHT Nite-Shades paint to get a black tinted visor though. I have also read about people using Krylon X-Metals paint to get other colored visors.