For some reason I ended up lubing the switches of my keyboard. I used a common opening tool as shown but I needed something to hold the two parts of the switch in place after opening for working on it.

The use is pretty simple:

1. Stick the switch on the top of the tool. 

2. Place the switch on the opener and push down the top of the tool until the switch comes open with some click.

3. Remove the top part by lifting it straight up carefully, so the spring ant other parts stay in place.

4. Transfer the bottom part of the switch to the stand. (Make sure the contact pins are aligned working with used switches so it fitts the slots)

5. After finished your work simply mount the top part back again by pushing on the key housing not on the tool. until your hear a klick again.

The two parts prints in about 30+15 minutes on my old Ender3. No support needed nothing special. I pinteted in PLA. The fitting for the switch is a bit delicate. The version upladed fiited without rework. Used with Kailh switches but should be good for most other brands, but you might need a diverend type of opening tool.