Hearts might be impractical, but sometimes a little heart can go a long way, and no one knows that better than the Tin Man. Featured on this marvelous Wizard of Oz Tin Man Morphing Mug, he's accompanied by the words "Hearts Will Never Be Practical Until They Can Be made Unbreakable." The 11-ounce ceramic mug transforms from black to a vivid full-color image when hot liquid is added, and it weighs 1 pound! Hand wash only. Not dishwasher safe. Do not microwave.