What's plastic, a metre long, brightly coloured and sounds like an elephant? It's the vuvuzela, the noise-making trumpet of South African football fans, and it's come to symbolise the sport in the country. Despite the many calls mostly from players to ban this freaking annoying machine, organizers are instead defending it. Van Persie, a dutch player, didn't hear the referee calling an offside today cause of the horns. "Look at them as part of our…