Did the batteries in your clock ever run out? Probably, but batteries are not difficult to get. However, this is the only problem that the Water Powered Clock would solve.
Like the name says, it’s an electronic clock that runs on water (or coffee, or soda…) It’s nothing complicated if you know a bit of science: the internal converter extracts electrons from water (or other liquid) molecules and provides a steady stream of electrical current acting as a fuel cell to generate power to the clock.
That’s all fine and dandy but… who needs this? Environmentalists, maybe. People who fear the end of the world, perhaps. (But really, if an asteroid strikes the Earth, the clock will be the least of your worries). Or someone with a lack of flower vases. You decide if the novelty factor matches the price.
How much under $29.99?
Some: $12.99 on ThinkGeek.com.