4. London 2012 Olympics
Year original logo introduced: 2007
Year logo re-designed: 2012
Given this took more than a year to unveil, it had to have been designed and redesigned numerous times. This $800,000 monstrosity is nearly unreadable. "Jagged panes of garish colors usually reserved for empty space in a .jpg" is the best read we have on this. The world wasn't lacking for more suggestive interpretations: The Iranian contingent for the games claimed to see the word "Zion" in the logo, while many bloggers said it looked like one person fellating another. No medals were awarded for design.