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Joey Hudy, Boy Genius: All the Pictures You Need to See

He's created a small business by selling the Shields on multiple websites. He hopes the contraptions will help other kids discover the joy of engineering that's so transformed his own life.

(http://lookwhatjoeysmaking.blogspot.com)

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Joey Hudy is the 16-year-old inventor of the marshmallow canon, and Obama's special guest at the State of the Union. Here are pics of the boy and his creations.