Over a year ago someone came up with the great idea of a case for the Raspberry Pi made from cardboard. http://www.raspberrypi.org/archives/1310
Since this was announced the camera board has been released for the Raspberry Pi and a lot of people are getting great pleasure from using the GPIO pins on the Raspberry Pi to connect to the real world.
With this in mind HERE is a PDF of a modified version of the original Punnet with these ports exposed as well as the pin outs for the GPIO port listed. Makes it easier to figure out where to connect the wires.
NOTE: This PDF is UK A4. Make sure there is no scaling when printing it.