Keeps your loose cable ends from falling down behind the desk, saving you from having to fish them back out with a coat hanger or enlist your kid and his small hands to grab them.
You may want to scale it up a tad if you intend to use the holes with #6 screws; right now, they'll take finishing nails.
Feel free to modify and repost.
cable_catcher.stl | 596.8KB |