In southern China's Guangxi Zhuang Autonomous Region, a master carpenter has become an internet sensation. Wang Dewen, also known as Grandpa Amu, became an influencer by making toys for his grandson. He employs a range of ancient techniques that went into the construction of the Forbidden City in Beijing. The man has been dubbed a modern day Lu Ban, a legendary woodworker and a household name in China around 2,500 years ago.