Released in 2010 as an exclusive item within the Walt Disney Imagineering Sorcerer Hats Mystery Pin Collection, this fourth release of the "Characters" series features a blank Sorcerer's Hat front on sealed mystery boxes containing individually numbered Limited Edition pins; each box includes a color illustration of the characters and their LE numbers while the reverse displays the hat with a black background and white question mark. The collection, designed by Danny Handke to showcase Disney Parks attractions and beloved figures such as Mickey Mouse, Donald Duck, Cheshire Cat, Gus the Hitchhiking Ghost, Mike Wazowski, and Dopey, is sold in various colored blind boxes without set restrictions or specific numbers per character. Although the exact edition size for each pin varies between series, the entire "Characters" collection is limited to a total of six individual pieces representing only the smallest LE number available on any pin within the mystery boxes, ensuring that all five characters are included together as part of this complete set. The pins feature classic WDI design elements with waffle-patterned Sorcerer Hats and official copyright markings on both sides, with the front displaying the illustration and collection name while the back carries a black hat with a question mark to confirm the mystery element.