Two men photograph a giant sign saying 'yuk', made from cigarette butts in an effort to  get smokers to bin their butts in the Sydney central business district on September 25, 2014.  Australian smoking rates have fallen sharply since plain packaging was introduced, but a landmark challenge to the laws could have implications for other countries mulling similar moves including France, which is expected to announce its own plans for stripped-down packaging shorn of tobacco company branding.  AFP PHOTO/William WEST        (Photo credit should read WILLIAM WEST/AFP/Getty Images)