Combo photo shows an embroidered ball displayed at Anthropology Museum of Guangxi in Nanning, south China's Guangxi Zhuang Autonomous Region, May 18, 2019 (L), and residents exchanging skills of making embroidered balls in Xinjing Township of Jingxi, south China's Guangxi Zhuang Autonomous Region, May 15, 2018. (Xinhua/Lu Boan)