From Huffington Post:  ”US President Barack Obama reacts as 14-year-old Joey Hudy of Phoenix, Arizona, launches a marshmallow from Hudy’s ‘Extreme Marshmallow Cannon’ during a tour of the White House Science Fair in the State Dining Room of the White House in Washington, DC, February 7, 2012.” (Photo credit should read SAUL LOEB/AFP/Getty Images)

From Huffington Post:  ”US President Barack Obama reacts as 14-year-old Joey Hudy of Phoenix, Arizona, launches a marshmallow from Hudy’s ‘Extreme Marshmallow Cannon’ during a tour of the White House Science Fair in the State Dining Room of the White House in Washington, DC, February 7, 2012.” (Photo credit should read SAUL LOEB/AFP/Getty Images)