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Barni and friends
The London 2012 Olympics mascot Wenlock (left) and Mandeville, the Paralympic mascot, pose for photographs after being unveiled at an East London school in May. Like Barcelona's Barni, the one-eyed, genderless mascots received a mixed reception.
In pictures: Barni, the mascot for the 2010 European Athletics Champs, is just the latest to divide opinion