Young inventor gets help from the chief
Joey Hudy, an 8th grade science fair champ from Phoenix, Arizona, shows off how his air cannon can shoot marshmallows. He gets some help from his new lab assistant, the President of the United States. This is probably the only time a member of the public is allowed to bring a “weapon” into 1600 Pennsylvania Avenue.
Source: The White House/YouTube
experiment with marshmallows