In need of a power-up boost? Then why not turn to the little guy who originally invented the concept in the first place, with this retro-cool Pac-Man Neon Heat Change 10 oz. Mug. When cold, this stoneware mug shows a Pac-Man logo, but once a hot drink is added the mug comes to life with characters from the classic game, with Pac-Man appearing to chase those pesky ghosts. Hand wash only. Not dishwasher safe. Do not microwave.