After quite a bit of time of measuring, re-measuring, and trying an innumerable amount of ideas, I FINALLY settled down on an artwork design that I can use for my Family Guy themed cab. The cabinet is based upon the Drunken Clam, so I figured my CP would be like the top of a bar. I've got two 8-way joysticks with 7 buttons per player, a trackball, a spinner, a four-way joystick with two buttons, a left mouse button, a right mouse button, two extra buttons above the right mouse button just for symmetry, a P1 Start Button, a P2 Start Button, and Pause and Cheat admin buttons. A shift button on the side of the CP gives me enough options up top, and inside the coin door are the Service (F2) button, and various other admin buttons.
So the first pic below is just a mock-up of where the buttons will be and the joysticks.
The second pic is the one that I'm going to go and have printed. I just need to test print this out somehow to make sure I have everything lined up right. I think the art is simple, yet complex enough to look good once it's installed on the CP. I just now think that I should re-think my color choices for the buttons on my CP.
Just keep in mind that these images have been dropped from 300 to 72 dpi and had their size reduced by half. Hopefully that doesn't remove the nice textures I put onto the napkin and the coaster.