I modelled this up in Fusion 360 to hold my Ryobi FVD01. There is a 20 mm X 3mm neodymium magnet that is press-fit into the top. The holes are designed to fit #8 wood screws. There are three holes in the top for bit storage, and the magnet holds the screwdriver and also provides a zone to hold screws or more bits. This orientation allows for the cable to be easily plugged in for charging. You will notice in the pictures that the surface of the print is a bit rough, as this was a test print. I'm sure a better surface finish is possible if you tweak your settings.
The author marked this model as their own original creation.