A 3D printable switch plate holder that prevents the switch plate from bending while inserting switches onto the pcb, making the process a lot easier.
There are several .stl files of the switch plate holder with different thickness. Choose the file which is appropriate for the thickness of your switch plate.
Update: Upon request I added another model with a longer handle.
Recommendation: If these numbers don't mean anything to you, you'll most likely be totally fine with the Model “Switch-Plate-Holder-3.0mm”. This can be used pretty much on any keyboard builds.
I saw the tool being used on a Twitch Stream from Alexotos and was intrigued by it. The shapes are simple enough to be 3D printed so I gave it shot.
The author hasn't provided the model origin yet.