I've created this to hold the plug of my desktop and 3D printer main power cable when it's not in use.

The plug stays out of view and is easy to pick back up when it's time to plug it back in the wall.

Use double-faced tape to glue the upper side to a table or add the adequate holes for your case by modifying the projected.

Used modifiers in Super Slicer to make the arms solid. 

Ignore the holes in the version of the picture below. I was checking the amount it would shrink as I had no experience in 3D printing holes then.