Didn't find a 3D model for the Immortan Joe "emblem" here, so here's one I converted from a photo. Scale to your preference in slicer settings.
Simple flat 3D model for printing, good for a keychain or whatever use you may find for it. Loved the movie, absolutely stunning visual performance, if you're an avid maker, make sure to check out the behind the scenes for making the vehicles in Mad Max Fury Road, I still can't believe how much work they put in those machines.
The author hasn't provided the model origin yet.