Among Us Transforming Crewmate/Impostor (Hinged Jaws)

thingiverse

Added hinges to the jaws which click into place. I had been using a short segment of filament as a pin, but it wasn't very sturdy and kept falling out. There's a 0.5mm gap between the two pieces. Depending on your machine's accuracy and tolerances, may need to tweak. As with the original, no supports are necessary.