Water Powered Multi-Function Clock

This H2O clock runs on the essence of life completely. Fill in regular water, and the clock will show you the time. According to the manufacturers refill is required about every 2-3 months. Another great feature is that when you roll the clock 90°, it will change its mode to alarm, timer or temperature!
http://www.gadgetshop.com/pws/ProductDetails.ice?ProductID=566
UK - £20