Who doesn't love a good surprise? With this color changing coffee mug, you're definitely in for a good one. This mug has a black matte finish when it's empty. But when it comes into contact with a hot beverage, the mug reveals the painting Eyes On You by Rob Kaz.
Use in microwaves or dishwashers can damage the magic coating.
Note that in some instances the coating might not be 100% opaque and an outline of the design might peek through a little.