Color Changing!
This Penguin Party Mug is a heat-transforming coffee cup that is sure to get the party started. When the cup is cold, the penguins stand around "chilling." Pour in a warm beverage and see them change into their colorful festive outfits! Comes in a colorful box and makes a great present for birthdays, graduation, and holidays. Microwave safe but not dishwasher safe. Do not soak.