Mouth Factory is a project by multimedia artist Cheng Guo involving several contraptions he built that basically use the mouth as a power tool. Guo found that by blowing and masticating, the mouth can become a drill, a lathe, an extruder, and even a vacuum. The project is meant to examine the real pragmatism of the human body and perhaps our provincial mindset of its capability. 

[via TodayAndTomorrow]