The original set on my California car were bleached clear too,
Took the bulbs out and painted the lenses on the inside with a modellers brush through the bulb hole
No brush marks and not subject to weathering or washing wear.
Tided me over for a year until I managed to buy some NOS ones back in the days of Delorean One !
My painted old ones sold on ebay about 8 years ago so are probably still in use.