Color changing mugs are special cups that change color when filled with hot liquids. This effect is usually achieved through heat-sensitive materials that react to temperature changes. When you pour in a hot beverage, like coffee or tea, the mug's surface transforms, revealing vibrant colors or patterns. These mugs are popular for their fun and interactive design, making them great gifts or personal items. They often feature themes related to cartoons, movies, or nature, appealing to various interests. Color changing mugs are not only functional but also add a playful element to your drinking experience.