Tool Holder for Harbor Freight 3pc Socket Caps 67011 and using HF magnets 67488.

The socket drive holes allow them to be easily removed while still using the ball in the drive to retain it in place.

Version 2.0 Made the magnet holes slightly bigger and aligned the 1/4 with the front of the other two.
Added a model with 1/8th in hole in case you don't want to use magnets.