VIC20 USB keyboard from my Etsy store, request a custom order if you want one with a Pi in.
New builds of this would probably be quite different with the new USB keyboard / joystick / DC-DC board I'm working on the for VIC20 and Commodore 64. More on those later.
Tune in tomorrow to open another window on the Advent Calendar of USB keyboards.
*Yes, I know it says VC20, but everyone knows it's really a VIC20.