MultiClip universal cable holder
I remixed the original by guyc to make it comaptible with the MultiClip universal mounting system.
The example print from the pictures uses magnetic multiclips to fix an assortment of laboratory cables to a metallic surface.
If you need different dimensions, you can just re-parametrize the original and find the clip mount template object in my collection on tinkercad to easily recreate your own version.
If you like the MultiClip idea you might want to have a look at some more MultiClip-enabled designs. You are also very welcome to use the MultiClip Templates for your own objects.