This Table Cable Clip holder will stop your cables from falling behind or down your table. This is quite useful, because I don't want to crawl behind my desk every time I want to attach the printer usb cable. I hope this helps you guys, too. Inlet distance is 5mm (max cable thickness).
There is a version for 35mm thick table plate and for a 18 mm thick table plate. In the design the distance is about 11mm smaller than what is needed so the part is compressed on the table.
If you have a different thickness, the design can easily be modified in the catia part or as stl.