There are a few other models on Printables that serve the same purpose, but I had an idea in my head to add the Lyrion logo to the larger knob. The small volume knob was easy enough to replicate while I was at it.

If you want to make changes, copy the OnShape document from here, or use the included STEP file. The variables on the left (Pin_Diameter and Draft_Angle) should change the press-fit tolerances, but the models uploaded here are the ones I found to work the best.

There are some small details on these parts, so a 0.25mm nozzle is best if you have one. If not, a 0.4mm nozzle should still work. Re-orient the parts so the face of the knobs are on the build plate.

To remove the old knobs, simply pull straight out and they should come off of the potentiometers. Reverse process to install the new knobs. 

Enjoy! Let me know if you have feedback or need additional files uploaded.