This is a simple magnetic cable clip I made for my desk setup.

I've shared the design file so you can easily change the parameters in Fusion360 for it to suit your cables & magnets.

The design shared here is for a 9mm wide and 1mm thick magnet, with a 3mm cable diameter.

The parameters available for modification are:

• The cable diameter
• The cable diameter tolerance (set at 0.2mm)
• The magnet diameter
• The magnet diameter tolerance (set at 0.2mm, you can play with that for the magnet to fit tightly if you don't want to use any glue)
• The magnet thickness
• The shell (set at 1.5mm)

The arc (the curves on the top) is a function of the overall diameter (magnet, tolerance and shell). But you could also change that if you wanted to.