This is a little mic stand clip that I use on my K&M mic stands. The included STL is for the top half of the stand, with a 15mm diameter.

The hook isn't super strong due to its size, but works fine for keeping cables off the floor. I usually wrap a thin strip of velcro around the cable, and then hang the velcro on the hook.

Printed in PLA on a Prusa Mini using the standard “0.15mm QUALITY” setting, without supports.

NOTE: At 100% print, this is REALLY tight. I'd recommend starting at 102% size, and then go up or down in 1% steps if you need a looser or tighter fit.