Workers make Caxirolas in a factory in Yiwu, east China's Zhejiang Province, May 20, 2014. Workers here have produced more than 2 million Caxirolas in less than six months. Overseas orders have surged since factories in Yiwu, a small commodities boomtown, began to produce Caxirola, the official percussion instrument of the upcoming 2014 FIFA World Cup, in October 2013. About 90 percent of the world's Caxirolas are made in factories based in Zhejiang and Guangdong, two manufacturing centers of China. Chinese factories had also made a fortune by selling Vuvuzela horns during the 2010 FIFA World Cup in South Africa. (Xinhua/Wang Dingchang)