More wind spinners & a few sail based vehicles
this ship looked good but was too heavy
A quick mod and it went!
Sail plane!
3 way race
Wind spinners were a disappointment, they took focused wind to get moving. Not at all what I had in mind with the cup shaped design. We’ve tried many of them and could never get one working well. 
Coming up with his new wind powered race car
Fun times, I’d like to get more ideas of things which could move with the wind.
Very cool! For something else that moves in wind, maybe you can invent a baffle/pendulum that has geometry that causes it to oscillate in a steady wind. You may have to start the oscillation, letting it “bounce” off the wind.