Cathleen Allison/Nevada Appeal Christian Martinez, 7, works on his group's creation at Camp Invention at Bordewich-Bray Elementary School on Tuesday. Camp Invention, a national program that encourages student creativity, is sponsored by the U.S. Patent Office and the National Inventors Hall of Fame Foundation. Tuesday was crazy hair day at the camp.

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Here it's OK to take the vacuum apart

• By ncs-import
• June 19, 2007