Why does no one make a self-illuminated coffee cup? Seriously. In all of the world of novelty drink containers, this one seems to be a no-brainer. You could use it to find your way through a darkened break room to a steamy carafe of fresh java. On dark winter mornings, you could carry it with you out to your car to illuminate your search for your keys. Hold it aloft, like Diogenes, in search of an honest shade-grown free-trade cup of joe.
Actually, as I’m thinking about it, I bet something could be done with glow wire and one of those transparent two-part thermal mugs… Heck, you might even be able to power the thing with a peltier junction between the cup and the outer shell. Have the heat of the mug make the cup glow, or something like that.
Probably not though… That’d be a bit much.
Still, I may have to see what can be done with some sheets of electroluminescent plastic and a couple of cheap travel mugs.