It's a known fact that President Obama is a bit of a sci-fi nerd, and any doubt was obliterated this week when he jousted with a lightsaber on the White House lawn during an announcement for Chicago's 2016 Olympics bid. 

The story blew up so big, even the guy picking his nose in the background of the photo became a bit of a celebrity on Digg (ironic, considering he was only digging himself).

Of course, the President didn't seem distracted at all by the booger man. Nay, he was in the zone. But just what was Mr. President thinking when he was slicing and dicing with his Jedi stick? Here are a few mash-ups speculating just what that may be:

If you'd like to make your own Obama Lightsaber Mashups, here are some handy green screen shots to help. Post them on your site and send us the link, or just send us your image and we'll include it in this gallery, along with a credit and link back to your site. 

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