I designed a 5mm cable clip that fits perfectly onto the printed microphone arm, which I got from @Neevoet.
https://www.printables.com/model/962164-adjustable-microphone-arm
The segments of the arm feature 14mm hexagonal holes, and I specifically designed these clips to fit those holes. I highly recommend using PETG as the material; PLA is likely to break during the installation of the clip.
The author marked this model as their own original creation.