They can be a bit complicated. Go to you tube and watch tutorials on making those. Good luck and have fun.

Donald: maybe this will help

https://www.todaysparent.com/family/crafts/how-to-make-an-old-school-whirligig-fidget-toy/

Here is one tutorial https://www.hometalk.com/17627649/the-whirligig-project

The Whirligig Project

Free plans

http://www.woodworkersworkshop.com/resources/index.php?search=FREE%20WHIRLIGIG%20PLANS

Sidenote you should look up the whirligigs in Wilson, North Carolina! Amazing!!

Is this what you are talking about? I used to see lots of them in the mountains when I was a child. They are so cool! https://www.youtube.com/watch?v=1Y0SnkLCiyI