Lucas Arts has released a a few (read: 7) retro style PSA/Travel images that you can get printed on a bunch of merch through their online store.

An aside here is that they run their Print-on-Demand shop through a service called Zazzle. Zazzle is very similar to CafePress in regards to the services they offer, but they have an expanded catalog of items that can be printed on, including shoes and skate decks. I’m currently in the process of getting some sweet-ass designs up onto Zazzle for your pleasure/my profit, but in the mean time, score yourself some Star Wars swag.