Wacky Races Muttley Morphing Mugs Heat-Changing Drinkware - 11oz

This super bright, officially licensed mug features Muttley the dog. The exterior of this officially licensed 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, strongly recommend against it. Please do not microwave this mug. Hand washes only. Due to the need for the hot liquid to transform the mug, this mug might not be suitable for young children.