What's brightly coloured, plastic and sounds like an elephant?
It's the sound of the World Cup horn they tried to ban - the vuvuzela.
The noise from a vuvuzela with a full lung blast has been measured at 127 decibels – louder than a chainsaw.
But the trumpet is widely popular, with thousands already ordered around the country.
Here reporters from the Sutton and Croydon Guardian newspapers test out the instrument and find alternative uses, should the neighbours complain...
Send your World Cup videos to newsdesk@croydonguardian.co.uk
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