That's Halloween of 1983, I believe, and I'm wearing one of the classic Ben Cooper Halloween costumes of the late 1970s/early 1980s. I was Darth Vader three years in a row - but for some reason, I had Luke Skywalker's green Return of the Jedi lightsaber by this point. Those costumes were fantastic in their simplicity, and no matter what the pop culture license, they usually said what it was right on the front. It was like wearing a plastic garbage bag with Lord Vader on the front, and it was awesome. Now, thanks to EntertainArt, that vintage artwork is now hanging in my office at Rock Father HQ as a piece of fine art. The Star Wars logo, however, has been replaced with "Darth Vader Lives!"
These are available now for a limited time, direct from EntertainArt. If the retro thing doesn't suit you, they have dozens of Star Wars designs for fans of all ages and tastes. Check out the full collection: http://www.entertainart.com/star-wars/