There's a strange obsession here at Tech Digest, for taps with coloured LED lights. Yes, I don't understand it either, but at least the diehard faucet fanboys can now rejoice that the UK market has not been left out of the lucrative affordable-coloured-taps world. The above contraption turns your stream of water into a coloured 'waterfall' according to retailer I Want One Of Those, and due to the inbuilt temperature sensor, it changes between red and blue depending on whether your kids are wasting hot or cold water that hour. At £14.99, you could afford...