I created these yesterday for my 737 sim. If my CNC was operational, I would create them from 3 & 5mm white opaque perspex. Spray them grey, engrave the text and bolt them into the sim. Unfortunately my CNC "Z" axis bearings have failed. That's going to set me back at least 6 weeks while i wait for new parts.
I have added the links to the members STL downloads page if you would like to download the design for the panels and knobs.
So for the time being, I decided to 3D print the panels and raised the text so it was really easy to paint the wording with a paint pen. The panels then need Qty 2, 10K Ohm potentiometers.