they are omron yellow/orange switches. Loud and clicky.
the caps are from the same board (some off brand fujitsu IIRC).
I got the board from a garbage sale and it was in bad shape.
I was only going to cover the topside of the plate with carbon to cover a few rust spots in the plate.
also this was to cover my cutting of the plate with a dremel tool.
I did this with minimal budget. no custom plate. lego case. wire I found around my house.
The only thing I bought was the teensy 2.0 controller (16$) and the board ($15).
I built this board to play with hasu's firmware source and to relearn soldering using the lowpoly method.
I typed this whole thing on it using a modified version of hasu''s gh60 firmware with poker layout.