I like the idea too.......
I have had this idea too. The thing is the legality of it. I think that since the ricers get to have neon on the car, and seeing as how they are "personal" trucks, not "for hire" hotshots, or wreckers, it should be ok. I have not had ANY problems from my headlights, and have had them for about 6 months now. They give a very slight blue tint, very good looking. Half the kids here in my town have them, that is not exgarerated. I see them all the time in Houston, still no problem.
Here's what you could do. get the clear dome, and put an amber bulb in. At the same time route another wire and put a blue bulb in it too. Hook them up to a different switch, and bingo. For car shows and what not, that would be sleek I think.
I'm not saying that it's legal, just something else to ponder.
Andrew