Little did Linda Christensen know when she walked into a 40 degree rotating cooler in 1972 that inside that cooler over the next 50 years she would carve 41,500 pounds of butter into the likenesses of more than 550 young women involved in dairy farming. In that time traditions developed around the "butterheads" including the lives they go on to live, some as centerpieces on wedding tables, in cookie dough for hundreds of holiday baking...