How to recycle fan propellers?

https://www.hometalk.com/search/posts?filter=fan%20blades

Paint them and use them to make dragonflies, bees, airplanes, flowers or any number of yard art projects

Some ideas:

https://www.hometalk.com/search/posts?filter=recycle%20fan%20blades

https://www.pinterest.com/search/pins/?rs=ac&len=2&q=recycle%20fan%20blades&eq=recycle%20fan%20blades&etslf=NaN&term_meta[]=recycle%7Cautocomplete%7Cundefined&term_meta[]=fan%7Cautocomplete%7Cundefined&term_meta[]=blades%7Cautocomplete%7Cundefined

Theres a lot of ideas here

https://www.pinterest.com/tmkirk/repurposed-ceiling-fan-blades/

Paint them and decorate with washi tape or duct tape with a child's name to hang on their wall. Depending on how many you have, you can paint each one for a different holiday. Since they're double-sided you could put two holidays on each one. Then hang them on a wall or in a window.