Try an International Travelall lenses. They're one piece red with reflectors. I used to run them on my Bel Air in the sixties. It's an old school thing I don't see anymore. Might be hard to find, but well worth it. p
Try here www.genewinfield.com/ his look better. They are two parts the inner part is clear and textured, and the outer part is red and smooth. They don't have that waffle look from the outside like others. May cost a little more but worth it.