Windmill Squirrel Deterrent

Our favorite grind and brew coffee maker died and an idea was born. I salvaged the motor and stainless steel sides, and with a bit of scrap wood and a caster wheel, I was able to make this great wind mill.. So far, the  windmill has been able to keep the squirrels from eating from our hanging tomato plant.
 I'm sure at some point I can get it to charge something like batteries, or a garden light, but for now, we are happy with it just keeping birds and squirrels away from our tomatoes! P.s. I added the water bottle to keep the motor dry during rainfall.