Description
Better keep track of your valuables with these nifflers around! When you flip the mug upside down you’ll have to check to see if any valuables fell out. The exterior of this officially licensed mug transforms from black as hot liquid is added, revealing the hidden image in full vivid colors. 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, 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. Morphing Mugs
