Here's a series of photos showing the turning process:

My sister has beautiful hand writing so I had her print the face plates for me. I tried lots of pens and found one that worked well as long as I polyurethaned the surface first. Here's my sister and her daughter at work:

Here the stop knobs are being glued to the shafts with a level to check rotation:

Here are the shafts and stop knobs after a coat of polyurethane:

Here are the completed stop knobs: