The switch holder is designed to sit under the PCB in a consolized Killer Instinct arcade PCB with dual board mod to switch from one game to the other.
The acrylic case in from Emiliano Arlettaz https://github.com/emilianoarlettaz/arcade-pcb-case. The bottom steel stands are 10mm high.
The switch I chose is part #CKN10381-ND from DigiKey.
I printed the item with the switch hole facing down, and supports in the side slots.
A bit stiff to slide between the PCB stands, but worked on the first try.
If you're interested in the dual board mod https://youtu.be/gsnVawQdUa4
The author hasn't provided the model origin yet.