From what I understand, the "image/logo/words" are etched out and behind it is a solid uniform color (although I will ask about multicolor). I know a couple people that have these stock on their cars and it looks VERY nice (also w/illuminated door handle via led).

Personally I was thinking of the VehiCross badge (on the side of vx). Maybe have it spread out a bit more where each letter has its own spacing. VX would be ok, but because it's short, it wouldn't take up much width space to show light and the effect might not be as impressive, i dunno... I'm down for brainstorming...

In a perfect world, personally if I could get a unique set, it would have illuminated alien symbols. After the exterior changes then I'm moving interior and going for a full alien theme including symbols going down the pillars in the front, liquid neon sticks on the rear pillars, alien symbols going across the border of the headliner, and so on...