Cessna Power Panel
I was able gather a few parts from Amazon and Ebay to get what's pretty close to a Cessna power panel. Here's the inspiration (bottom lower left):
Process:
1. Get the parts: Amazon.com (these are the "prime" prices, so you can probably get for less in exchange for shipping patience.
On Ebay (Link):
These little buttons make excellent faux fuses. At 10 for $2, you can add a nice touch to your panel to complete your check-lists, etc.
2. Design the Panel. It's originally designed in Fusion360 (Link). This design is totally parametric, so feel free to change Parameters like swToggleHoleSize (the rest will automatically resize) to adjust for your own components.
5. White Labeling: This can be one of the more difficult things for cockpit builders. You can't print white with inkjet printers (it's just the absence of color on paper). I found a great solution. There's a label printer from DYMO Label Manager 280 (Amazon Link) for about $20 that supports a "white on clear" cartridge (Amazon Link) for another $10. Also, this machine can be hooked up to your computer (USB) and you can print the graphics directly as rendered in Inkscape. Print, cut close to letters, apply.
6. Next step, wiring to an Arduino (less than $10 on Amazon) board and interacting with the switches from x-plane through USB. There's a great x-plane plugin and Arduino library that makes this super easy -- It's called Ardsim: http://arduino.svglobe.com/