The University of Applied Sciences in Vienna developed the FlipMouse, a replacement for a normal PC mouse to be used by people with motor disabilities.  This project really improves PC accessibility to those who need an input device other than a standard keyboard or mouse.

The full project information can be found on the University of Applied Sciences web site.

The design and source code files are open source and can be found on GitHub

FLipMouse Parts
Assembled FLipMouse