Here is a custom made prop for sale. I made this using a wiper motor and linkage. The prop works great! As seen in the You Tube Video it has a 12v-12amp controller. I now have a 5v-5amp controller. It slowed it down just right.
With almost 7000 views on you tube and many compliments, I am ready to sell it.
This will require some assembly. Very Easy!

This will come complete as seen in the video.

All you need to do is assemble and plug and play.

$200.00 Firm. Plus shipping.

I accept paypal.