We're in a serviced flat while we're in Zurich and we needed a kettle. For some reason although it has a dishwasher, a microwave and all sorts of other things, it doesn't have a kettle. So we pottered out to interdiscount which is kind of like Switzerland's answer to Australia's Harvey Norman and bought the cheapest kettle.
But as we were paying for it I read the top of the box and discovered it's AMAZING feature. It changes colour. Someone has designed a kettle that when the water changes fades from blue to a whitey grey colour. It's bizarre. Other than that it is just a normal kettle but it CHANGES COLOUR.