The FLipMouse (Finger- and Lipmouse) is a device which can replace standard computer input peripheral devices (like mouse and keyboard) for people with physical limitation.
Instead of moving the mouse with your hand and clicking with your fingers, you move the mouse cursor by applying very low forces to the Flipmouse joystick (mouthpiece).
Clicking can be achieved via sipping or puffing into the mouthpiece or via external pushbuttons which can be attached to jack plug connectors.
Furthermore, the FlipMouse has many additional features like keyboard shortcut creation, joystick emulation, Bluetooth support and environmental control via infrared signals!
More Information on this project is available here:
https://www.asterics-foundation.org/projects/the-flipmouse/