The Nintendo Gameboy Heat Color Changing Coffee Mug Cup by Paladone is a vintage-inspired collectible featuring Mario characters and themed after the Nintendo franchise. Made of ceramic and porcelain, this unique coffee mug can change colors when filled with hot or cold beverages, adding a fun and interactive element to your daily coffee routine. With a capacity of 10 oz, this original piece is a must-have for fans of Nintendo and collectors of unique kitchenware items.