I love this Cup! Its designer, Damion OSullivan wants we desayunemos with a smile to make go to work us easier. And I am sure that it does because the "Morning Mug" is really nice.
When the Cup is cold, it shows a white face slept on a cup of black background. But as we vertamos the milk, coffee or hot tea, the Cup will be waking up and will change the bottom of the Cup, which will be white, and his gesture also the Cup is now smiling!