For what it's worth, a few years ago I was sick of the rather large and ugly red taillights on my Navigator and was told to use the VHT paint. I purchased a can disassembled the lights (including the brake light above the rear window) and got to work spraying.
Let me be the first to say that I'm no painter! The job came out okay and did tone down the lights quite a bit. However I was also not happy with the dullness of the finished product... Tried waxing them, but that didn't do much to match the lenses up with the rest of the vehicle. I was never really happy with the results, but with no source for purchasing already smoked lenses, that was the best I could do.
On a recent trip to Florida I checked with numerous car shops looking for custom lenses to no avail. I took my Navi to the car wash one day and asked there if they knew where a good place to look for lenses would be... One of the guys who worked at the car wash gave me a card of a friend of his who is a painter, and apparently smokes lenses all the time.
A trip to the paint shop and within an hour he had strip off the VHT paint and resprayed the lenses black (with a nice shine) and they now look FANTASTIC! He never even took them apart, just papered and taped off the entire rear end of the truck and sprayed away!
The best part was that the entire job only cost me $45.
If you are familiar with Lincoln Navigators and their incredibly ugly (IMHO) LARGE red rear lights, I'm sure you will appreciate how much better my Navi now looks.
They are now almost invisible and still shine bright when running or the brake is applied.
I'm sure any good painter can assist in giving you the look you want at a reasonable price.