I picked up a bunch of push-button switches off Amazon and 3dprinted a little mount for them to go in e-bays. I attached the stl file if anyone wants to print some for themselves. The holes will self-tap an M3 screw so no nut needed.
link to switches https://a.co/d/dV4BYJI
link to switches https://a.co/d/dV4BYJI