This cable clip design integrates a live hinge to easily fit smaller cables.  The design has no-support holes, and a small recess for double sided tape. If you prefer screws you can install with those as well.

 A few tips for printing:

• No need for support
• No need for brim or raft, if you have adhesion problems, add a small brim
• PETG is my go to when printing these, but you can use PLA/TPU (PLA might be too rigid)

Happy printing! :D