The much-derided Adidas Jabulani, created for the 2010 World Cup, is now the ball of choice in a niche sport About once a month, Ben Clarke, the world’s leading footgolfer, carefully pumps up his collection of coveted Adidas Jabulani footballs. Like most elite players, Clarke possesses an extensive array of balls, all of which require regular inflation to prevent degradation, even those sitting pristine in their original boxes, unsullied by a single boot. Footballs are prime currency in a niche…