Ha How funny would it have been if that guy smacked it the first time with that 2x4 and the thing shattered. He'd be like well..... haha. But yes, those things are sweet.
You could always go with some B.A. neons from pep boys and put them under the seats with a switch ;-)
Bling Bling
That's what I did in my car though. In all seriousness, as much as I said that jokingly, it made finding things on the floor in the dark a snap. The light source was right down there on its level.
i have blue neons under the dash and i hate to say it, but i love them

it makes driving at night more fun, easy to find things at night, and they erally attract the cops when you are driving at night iwth the doors off

also have a little push button LED light that sticks to the dash right under my clock on my YJ that helps as well.