Since they already have a USB powered fridge for your soda, that is:

It's got an internal LED light and gets power soley from a 5V USB power source. Supposedly the cooling pad will get all the way down to 8.5 degrees after 5 minutes of being plugged in.

I don't remember how I came across this… but I needed to test out the new feedburner feeds and post something.

http://usb.brando.com.hk/prod_detail.php?prod_id=00286