The Germans are to thank for the first solid chocolate Easter bunnies. Following the invention of the chocolate mold in 1830, chocolate Easter bunnies were popping up in baskets every year across the country. The tradition did not take off in the United States until 1890, when a man by the name of Robert L. Stochecker featured an unusually large one in his pharmacy. Everyone was instantly in awe and the demand for the chocolate confections soared. Hollow bunnies came about after World War II. Due to rationing of everything, including sugar and cocoa, hollow chocolate bunnies were made to cut costs.