Once it was tested and somewhat stable, I didnt want to wait until I could get a PCB fabricated, so I put it together onto a piece of perf board.  I had all of the components hanging around and had some neopixels on a strip I could take from and solder handy enough on perfboard with some wires.  Not the most professional but it was cheap and handy at the time.  Once I had that done I trimmed down the perf board with a rotary multi-tool and started putting together a case.  I know I should get the hang of Fusion 360 or Solidworks, but I find 123D Design super easy and quick to use, so I made a basic case for it there.  I printed out the buttons and the rotary knob in translucent PLA and raised the media controls slightly and coloured them in with a black sharpie.  The rest of the case was printed in black PLA.  Simples.  It's small enough, probably a bit too light for the cable as thick USB-C cables tend to push it around, however its sturdy and durable.