Summary

Here's a basic cable clamp for securing a pair of cables to a stud (or whatever you want to screw it in to). The screw hole was intended to fit a drywall screw, but other's should fit fine. I made this for helping-square up ethernet cables run in my walls.

There is a single cable version of this design here:
https://www.thingiverse.com/thing:3564578

Quad version:
https://www.thingiverse.com/thing:5029783