Water Powered Clock

The Water Powered Clock from ThinkGeek as its name suggests only needs water (or any other electrolytic fluid) to power itself. A small converter in the clock draws electrons from the water molecules to provide a steady power source. As the water evaporates simply refill the reservoir and your clock will keep running in a timely and very cool fashion. As the picture suggests you can even use the clock as a little vase also. Water not included. Available for $12.99 from ThinkGeek.