Apparently Canon makes mice. They released something called a X Mark I. Sounds like a great name for a missile.
This mouse has a keypad built into the palm rest, so it can double as a calculator. Will cost $60.
http://www.engadget.com/2011/07/26/canon-launches-x-mark-i-mouse-lite-pairs-10-digit-calculator-an/
Not sure I want to come home after work with a keypad imprint on my palm though.


