The cold mug shows a rather tired looking face on a black background. When you pour in the hot coffee, the mug's appearance quickly changes. Within a minute, the black mug transforms into a happy spritely smiling face. Of course it also works with tea or hot chocolate!

The cold mug shows a rather tired looking face on a black background. When you pour in the hot coffee, the mug's appearance quickly changes. Within a minute, the black mug transforms into a happy spritely smiling face. Of course it also works with tea or hot chocolate!

Monday Mug changes mood when hot
- cold the mug is black with a sad looking face 
- hot the mug is green with a smiling face 
- Product Dimensions: 3.2 x 4.3 x 3.5 inches ; 8.8 ounces