This Harry Potter heat changing latte mug is sure to get your morning off to a magical start! Cold, the mug features a black background with white and gold stars, as well as the words, "Dobby has no master", while the reverse features Dobby's unmistakable outline in white against the same starry background. When hot liquid is poured in, the black background transforms to a light grey, revealing the words, "Dobby is free" on the front as well as lovely character art of everybody's favourite house elf on the back. Once the drink is finished the mug returns to its original state as it cools. Packaged in a printed gift box, it makes a lovely gift for any Harry Potter fan with a soft spot for Dobby.