I made a brand new file in Fusion 360 to create this cable support with the silhouette of an owl.
I was inspired by this project https://www.thingiverse.com/thing:130495 from xifle.
But I wanted to customize the holder with a silhouette instead of a simply rectangular shape. So Irecreate the design from scratch.
The file I provide .f3d is customizable for the size of the slot to fit any desktop thickness. The cylinder can also be lengthened thanks to the parameters. It is also possible to make other more specific modifications for those who are knowledgeable.
The STL file has a slot of 22 mm and the cylinder that goes against the wall has 5 mm height.
Hope this can be useful!
Be sure to have a good wall thickness. Mine was really tiny (1mm) and the print was a bit fragile.