Harry Potter - Aguamenti Ravenclaw - Morphing Mugs Heat Sensitive Mug - Ceramic Color Changing Heat Reveal Coffee Tea Mug - by Trend Setters Ltd

Aguamenti! Show your support for Ravenclaw with this Harry Potter Morphing Mugs collectible. When you add your hot drink, the mug shows the Ravenclaw blue, complete with an outline of a raven magically created with water and the Hogwarts crest. The exterior of this officially licensed 11oz mug transforms from black as hot liquid is added, revealing the hidden image in full vivid colors. While this mug may be used in the dishwasher or microwave, for the longest lasting, highest quality product, we strongly recommend against it.