Abstract: A cover for hay bales and other three dimensional objects, and a method of advertising using the cover is described. The cover is generally of a size and shape to be wrapped about an cylindrical object having the relative proportions of a beverage can. When the cover is applied to hay bales, round bales may be stacked to provide suitable proportions. The cover bears indicia associated with a particular brand and/or type of beverage, such that the covered bales will resemble an enlarged version of the particular beverage can, thereby providing suitable advertising benefit to the beverage company.