A Youtube follower of mine (nicksantitoro) wanted to know if I could design and 3D print a whirligig, so I combined the pterodactyl from my "Pterodactyl, Pseudo Style" model with a wind driven drive train and "Whirligig, Pterodactyl" is the result.
Once assembled, you can mount the model on a surface or pole using the M8 by 1.25mm threaded joiner but make certain the blades do not come in contact with whichever mounting method you select.
As usual, I probably forgot a file or two or who knows what else, so if you have any questions, please do not hesitate to ask as I do make plenty of mistakes.
Designed using Autodesk Fusion 360, sliced using Ultimaker Cura 4.12.1, and 3D printed in Tough PLA on Ultimaker S5s and an Ultimaker 3e.