United States Postal Service promotes the issuance of its Star Wars commemorative stamp series, in celebration of the 30th Anniversary of the release of the original movie. Consumers vote for their favorite stamp and can become a “Jedi Shipping and Mailing Master” by taking several USPS product/Star Wars-related challenges. Completion of the challenge earns the consumer the title of "Jedi Shipping Master" and gains them entry into a sweepstakes.