LTL Prints just released a series of wall prints from NCsoft's most popular games (Guild Wars 2, Aion, City of Heroes, and Lineage). LTL Prints specializes in large prints that self adhere to the wall for a really cool look. Each game has several to choose from and they range in some pretty big sizes (can be as large as 7 feet).
In addition, NCsoft is currently running a series of promotional giveways on Facebook. Currently the Guild Wars 2 Facebook is hosting a giveaway this Friday with one of the wall graphics available as a prize.