The Pinky4 Comptroller keyboard case is made from real walnut. After laser cutting, the plates are treated with two coats of linseed oil over the course of five to six days. Each case includes screws, standoffs, and MCU covers.
Information about the Pinky4 keyboard along with the source files from the designer can be found on the Pinky4 Github Repository. QMK key mappings and firmware can be found here.