There’s a glitch right now allowing anyone with a Fan Cow to share an unlimited amount of them with neighbors. How is this done, you ask?
1. Move a Fan Cow from your farm to a Dairy Barn.
2. Remove the Fan Cow and place it on your farm.
Then you should see this popup:
Click share, and you can share a Fan Cow with your neighbors! You can do this as many times as you want, so take advantage of it while you can because I’m sure Z* will do something about it shortly!