To demonstrate the Magnus effect, YouTuber PeterSripol grabbed a couple of KFC buckets and tricked out an RC plane. The resulting trial and error is mostly the latter.
Peter says in retrospect, "Not sure why I chose KFC buckets though… they make poor rotating flettner wings!"
Here's a better flettner wing design:
• RC KFC bucket aeroplane (magnus effect) (YouTube / PeterSripol)