Great cable hook, not my design I just made it Parametric and Procedural using the free and open source program Blender 5.1.2 and Geometry Nodes.

This .blend file has been sanitized and contains no embedded Python scripts. STL/3MF files are included for immediate printing.

Update:  Looks like printables are blocking Blender files now when they fix it I will upload it.  (I even tried a zip file)

Errors I get when trying to upload blend file.
Parsed file under_table_hook.blend was not identified
under_table_hook.blend
Parsed file under_table_hook.blend was not identified
under_table_hook.blend.zip
Archive contains blocked file "under_table_hook.blend"