Don’t be koi with me.
Fish Mug Heat Pad Coasters lets you have the koi pond you've always wanted. Without the mess and responsibilities of having koi fish! It comes in a bundle of two mugs and two heat sensitive coasters. The coasters show a bright fish silhouette when the warm mug is placed on top of it. The cups are made of glass, and the coaster is completely acrylic. It's a very tranquil and modern idea.