Looks like it's custom
*Was Mark's car.Pretty sure that's Mark's car.
You can either use yellow laminate film over the lenses, or yellow glass paint. I went with the yellow paint, and had excellent results.
Morette headlights have been out of production for over a decade at this point. You see them pop up in Subaru classifieds from time to time, but they aren't cheap (I sold mine for over $550).