Meet Oscar, a 7-year old entrepreneur and philanthropist and his dog Margo. For his 1st grade Science project, Oscar made root beer. It was so popular amongst his schoolmates and teachers that he started to research and test different recipes. The result is Margo's Bark. The root beer is named after Oscar's dog, a black lab-pit bull mix. All the proceeds go to help shelter dogs. You can try Margo's Bark at Tender Green's, Joan's on Third, Larchmont Larder, and the Urban Pet.