Kagen Schaefer’s Pipe Organ Desk
This is undoubtedly the coolest wood working project I have ever seen. A wooden desk whose drawers emit pipe organ sounds ranging over an octave. Open the doors to play a particular melody, and a secret compartment opens. The password can be changed by turning wood screws on the wooden pneumatic logic board, shown below.
That’s right, I just said pneumatic logic board.
The desk is made entirely of wood by the phenomenal Kagen Schaefer, who specializes in elaborate wooden puzzles.