Designer/artist Tim Simpson's Smile Helmet mechanically draws the corners of your mouth back into a grin. He created it for "people in jobs which demand an unusual amount of smiling, such as air-stewards, receptionists and politicians." A video of the device in action is available on Simpson's Web site. From the project page:
A sensor in the front of the helmet detects anybody within a 2 metre range, at which point the mouth is pulled into a broad grimace by a small servo motor and some concealed fishing wire. The helmet addresses the facades of social interaction and explores our responses to affected expressions.
Link (via MAKE: Blog)
