Went to a train show and picked up this train yard-art for our garden. It was $5. The metal fan was flimsy, bent and not functional. That is why it sold cheaply. I don't know if it ever spun. Looks like it had not been outside for long.
Found this fan and adapted it to fit the shaft of the Yard Art. PETG .2mm layers. It spins in a light breeze. I may need to scale it down some, but will see how it does at full size.
The wind came up last night and it was doing over 200 rpm.