Add Hot Water/Liquid to the Color Changing Mug and see what happens ;-) ... This is the perfect Holiday gift. This is a seasonal item and will no longer be available once sold out. 

The mouse pad and Color Changing Mug is just what your office space is missing. Add this Retro gift set to your order today. 

Details: 

• 11oz ceramic mug
• Black exterior when empty and cool
• Photos appear when hot liquid is added
• White mug interior