My friend, Chris, who I met in Japanese class, was quoted in this article:
As of Tuesday, there were just four smell reports out of North America. The balloon over Chicago—near Michigan Avenue and Ontario Street—says, "A room filled with the aroma of lightly burned coffee," Chris Kelly of the Japanese Information Center in Chicago told us. "Then it goes on to say, 'All around the United States it smells like coffee you would get at offices and schools.'"
An odd but cool site--and a good way to practice Japanese!