Surprise your friends with something unique when then visit you next for tea or coffee. Serve them a cappuccino or café latte in one of the magic mugs. These Magic mugs change colour corresponding with an alteration of temperature. Simply put, once you pour hot coffee or tea into it, the design of the mug is revealed as the colour changes with the heat of the liquid. It reverts to the original colour hiding the design or text upon cooling down to room temperature.