Mayor Richard Daley called the Cows on Parade project "The single largest and most successful event in the history of Chicago."
Peter Mars' cow was sponsored by Metropolitan Pier and Exposition Authority and was auctioned off at Chicago's Navy Pier at a benefit for the Make a Wish Foundation.
"The most fun part of my cow experience is that she was purchased by a very proud Irish lady, who sponsors a float in the St. Patrick's Day Parade. So every year the Cow rides on her own float in Chicago's St. Patrick's Day Parade, one of the largest parades in the U.S.A."