Yeah, that's one of the reasons why I did it. Makes it easier to find your way back to the campsite in the dark. The other reason is because the tear looks like a spaceship, what spaceship doesn't float.
It is an undercar LED kit for those ricer cars, ala Fast and Furious. BTW: that movie ruined the import scene and not all imports are ricers. If you go on eBay you can find tons of them on there in all kinds of colors, a kit runs about $50. Be careful to check the shipping if you buy from eBay, some had really low prices like $10 but shipping cost $50.
The kit has weatherproof tubes that house the LEDs. You just clamp the tubes underneath. They all connect to a control box that connects to power. This control box also allows you to make them flash and chase, I just leave it on. The old kits used neon tubes, kinda fragile and will probably drain your battery.
I gave a kit to Bluebonnet, I'm still waiting to see it.
You're not the only one who was wondering. (stole this pic from Jeanette "jmtk")
