Interference Filter Cable Clip Thingy

I own a Thinkpad with dockingstation that stands on my table. Sadly the ferrite core interferance filter attached to the cable always gets caught on the table's edge when I pull my laptop closer resulting in a disconnected charging cable...

Enter this thing.

It is an easy cone shape to be glued to the cable to make it getting caught on the table a thing of the past.

I modeled it in OpenSCAD so that you can adjust the dimensions of it to fit your own needs.

This is my first model made in OpenSCAD so if you see something in the code that I could have handled better feel free to tell me.