Iowa voter butters up ObamaThu Dec 27, 2007 10:03pm ET By Carey Gillam A bust of Democratic presidential candidate U.S. Senator Barack Obama made of butter is on display at a campaign stop at South Tama County Middle School in Toledo, Iowa December 27, 2007 TOLEDO, Iowa (Reuters) - While presidential hopefuls were trying to butter up supporters ahead of the January 3 Iowa caucus, one would-be voter was literally buttering up her favorite candidate, Democratic Sen. Barack Obama of Illinois. Norma Lyon, 78, a dairy farmer from Toledo, Iowa, used 23 pounds of butter to sculpt a life-sized bust...