Greg Schlomoff's wooden keyboard is fairly unique in the sense it's carved out from a single piece of wood – no plate, no PCB. The keyswitches sit directly in the holes cut into the 1/2" thick walnut and the backside features channels routed for guiding the wires.
Took about 2 years to complete, and I actually had to buy a CNC machine for this project – gregschlom.
Since QMK doesn't run on the Teensy 4, Greg had to write his own firmware.
The board also features an integrated USB hub with 2 ports and a 16 character LED dot matrix (HCMS-3911) – "They're really gorgeous, but super expensive".
Greg was kind enough to share a photolog of the process: here.
