Mailbag: Ecology: Green: Mike writes on product everyone can agree on

I know your company is moving towards greater sustainability and thought these products might be of interest.
This months promotional campaign features Eco-friendly GREEN Products. I found this liquid powered clock very interesting.

No batteries are required for the Liquid Powered Clock. Fill it up with water, juice, milk - even beer!
Displays date, as well as the time. Color: Blue Size: 1"x2"x1.75"
Click part # for larger image & price: 6620-06 Liquid Powered