Pin collector Linda Li of Guangzhou, China holds some of her pins outside the Olympic Village in Stratford in east LondonPin collector Linda Li of Guangzhou, China holds some of her pins outside the Olympic Village in Stratford in east London July 26, 2012.Pins collected by Linda Li of Guangzhou, China are displayed on her purse outside Olympic Village in east LondonPins collected by Linda Li of Guangzhou, China are displayed on her purse outside the Olympic Village in Stratford in east London July 26, 2012.Olympics – Previews – Day – 1LONDON, ENGLAND – JULY 26: Timothy Jamieson of the Coca-Cola showcasing team display his pins ahead of the London 2012 Olympics at the Olympic Park on July 26, 2012 in London, England.Olympics – Previews – Day – 1LONDON, ENGLAND – JULY 26: Timothy Jamieson of the Coca-Cola showcasing team display his pins ahead of the London 2012 Olympics at the Olympic Park on July 26, 2012 in London, England.Olympics – Previews – Day – 1LONDON, ENGLAND – JULY 26: A trader displays his pins ahead of the London 2012 Olympics at the Olympic Park on July 26, 2012 in London, England.Olympic Pin collectorsA journalist wears her Olympic pins at the 2012 Summer Olympics, Thursday, July 26, 2012, in London.Olympic Pin collectorsA collection of Olympic pins are displayed by a pin trader outside the Olympic Park at the 2012 Summer Olympics, Thursday, July 26, 2012, in London. The opening ceremonies for the games will be held Friday, July 27.Olympics – Previews – Day – 2LONDON, ENGLAND – JULY 25: Pin trader of Olympic pins at Olympic Park on July 25, 2012 in London, England.Olympic Pin collectorsPin collectors chat next to Olympic Park in London, Wednesday, July 25, 2012. Outside Westfield Mall… Read MorePin collectors chat next to Olympic Park in London, Wednesday, July 25, 2012. Outside Westfield Mall, at the edge of the Olympic Park security zone, a dozen people set up shop Wednesday with pins from the 2012 games and Olympics past, trading and selling. Some erected small displays covered in velvet to showcase their wares.Read LessOlympics – Previews – Day – 2LONDON, ENGLAND – JULY 25: Detail views of Olympic pins at Olympic Park on July 25, 2012 in London, England.