The Chicago 2016 committee just ran into the buzzsaw of bureaucracy that is the IOC. They have to ditch their most excellent logo because pre-finalist logos "shall not contain the Olympic symbol, the Olympic motto, the Olympic flag, any other Olympic-related imagery (e.g. flame, torch, medal, etc.), slogan, designation or other indicia or the distorted version thereof or a design confusingly similar thereto."
In other words, anything that would indicate the actual subject of the logo. This totally screws my t-shirt idea, but I'm not bitter. In fact, because I'm a good citizen, I'm offering these inspiring yet nonrepresentational designs for the committee's use.