I made this test board after I made a similar board with 10 pads (Linked here). The idea of it was to try to do the cap touch stuff directly on an arduino via a multiplexer chip (e.g. 74HC4051) before I got the MPR121 chip as in the other project I mentioned. This ended up being too slow dealing with the data coming through the multiplexer. This board also has 2 connections per pad where the other board I made has only one.
I went back to the other approach.
Heres some pics though of the board that was made.
Front of assembled board:
Back of assembled board: