Then play! Check out more projects like this at http://www.jarboeinitiative.com/
Step 4: Build Deck for Mouse/Keyboard/Gamepad
I built this extension to allow for two player to be able to play side by side with room on the x-arcade game pad.. or for their to be plenty of room for one person to navigate using a wireless keyboard and mouse.
I used reclaimed douglas fir tongue and groove floor boards, and the lip is made of walnut scraps.