I made this model to put in my window as a Halloween decoration. It is 3.5" (88.9 mm) tall, which is what the height from the mini-pufts in the movies. I designed it based on the screenshot from Ghostbusters Frozen Empire shown above. It would also work well as a fridge magnet. The model shown used PETG, but it should work well in PLA.
Mini-Puft_Window_Smashed.stl | 323.7KB |