Larry the Downing Street cat plays with bunting in the garden of number 10 Downing Street in London [Getty Images]

LONDON, ENGLAND - JUNE 1: Larry the Downing Street cat plays with bunting in the garden of number 10 Downing Street on June 1, 2012 in London, England. Four days of celebrations to mark Queen Elizabeth II's 60 years on the throne will start on Saturday. (Photo by Ki Price/WPA-Pool/Getty Images)

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