Goober: A product by Smucker's which was introduced in 1968. Goober ingeniously places two of the ingredients necessary to create a Peanut Butter and Jelly sandwich (indeed, everything but the bread) in one jar, and is immediately recognizable due to the fact that the two ingredients are arranged in a vertically striped fashion. Consumers currently can find Goober in two flavors: Grape/Peanut and Strawberry/Peanut.
Sources: http://www.smuckers.com