An entertaining but pointless crank toy. I saw a version of this made in wood in Instagram reel:
https://www.instagram.com/reel/DFPJIqXRnxh
I printed this in PLA with 0.4mm nozzle at 0.2mm layer height.
OnShape source:
https://cad.onshape.com/documents/3a5180b7e9b1c5b4a8962f42/w/7ae853cfbcfa0338cc051e3f/e/4e2d795e19187af876fa9a06
The author marked this model as their own original creation.