Disney Pin Trading is the buying and trading of collectible pins featuring Walt Disney Company characters, attractions, icons, and other elements. Many thousands of unique pins have been created over the years. Pins are available for a limited time, and are only available at Disney theme parks (including Disneyland and Walt Disney World) and at selected Disney Store locations. Characters from The Muppet Show and Bear in the Big Blue House have made regular appearances on Disney pins since the beginning of the Pin Trading craze.