In honor of the 30th anniversary of Star Wars, last week the U.S. Postal Service introduced a line of commemorative 41-cent postage stamps — 15 in all — featuring the likes of Luke Skywalker, Yoda, Darth Vader, Princess Leia and R2-D2, among other intergalactic icons of the George Lucas franchise. Thanks to the insane popularity of the six films in the saga, "we believe these stamps have the potential of reaching the blockbuster status of the Elvis stamp — a milestone only the Force could attempt to surpass," says David Failor, USPS executive director of stamp services. The Force was also felt in a promotion that saw 400 mailboxes around the country treated to an R2-D2 wrap for two weeks, courtesy of USPS agency Campbell-Ewald/Detroit.The boxes hype a website where fans can vote for their favorite stamp. The stamps themselves (see the PDF) were designed by veteran film poster artist Drew Struzan (DrewStruzan.com), whose oeuvre includes work for all the Star Wars movies.