This is my stickerless version remix of the face-turning octahedron by ElPekenin on thingiverse.
This remix includes holes in the pieces to insert 4mm magnets into. This needs 96 magnets in total if you want to fully magnetize it.
The only hardware needed in this are 8 3mm screws.
You'd need 8 filaments of different colors for this to work, and need to remove the supports and do quite a lot of sanding for the puzzle to turn smoothly.
The author remixed this model.