I needed maget holes for my workstation, so I remixed daclasen's excellent solder sucker holder design to add the full gridfinity base with magnet holes. I also shaved .50mm off the width to allow boxes to be placed around it, as I found the rounded edges were slightly overhanging.

COMPATIBLE:

Engineer Solder Suction Device SS-02*

*If it supports other solder suckers please share in the comments and I'll add to compatibility list.