The OrigamiUSA convention is the world's largest convention devoted to the paper-folding art. Jeremy Shafer, whose origami videos have racked up millions of views on YouTube, shows WSJ's Elizabeth ... more 
The OrigamiUSA convention is the world's largest convention devoted to the paper-folding art. Jeremy Shafer, whose origami videos have racked up millions of views on YouTube, shows WSJ's Elizabeth Yuan an origami sun hat, nail clipper and boomerang. less 
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WSJ Live
Wed, Jul 2, 2014 1:56 PM EDT