The Coalport Characters The Simpsons Four Stackable Mugs Collection from 2005 features a set of four white ceramic and porcelain mugs bearing the iconic characters from The Simpsons TV show. These vintage coffee mugs are both stackable and suitable for hot or cold beverages, making them a must-have for any fan of the beloved franchise. With the original design and licensed reproduction, this collectable set is a unique addition to any animation merchandise collection.