from the does-anything-beat-a-logitech-marble-mouse? dept.
Harry writes "For every blockbuster of the mouse world (such as Microsoft and Logitech's big sellers) there have been countless mice that flopped, or never made it to market. Mice shaped like pyramids; mice shaped like Mickey; mice that doubled as numeric keypads or phones. Even one that sat on your steering wheel. I've rounded up some evocative patent drawings on twenty notable examples."