The Today and Tomorrow website has this interesting piece on Cheng Guo's Mouth Factory: they are a series of machines designed to be operated solely by the mouth and permit the user to perform an incredible array of tasks.

The project explores the capabilities and versatility of this wondrous organ and correlating facial expressions, re-contextualised within the realm of production. As a comment on human enhancement, the project aims to explore the aesthetic of production through a series of performative devices. By focusing on the mouth, the production devices acquire a fantastic quality that amplifies and render visible the reciprocal relationship and effects between our body and our tools.