The wing shooter looks a lot like some of the weaponry used back during medieval period.
There's a name for them but it's evading me at the moment. The main difference I see is that the ones used back then used weight as a counter balance to create the force needed to fling "stuff". I think I've seen a modern competition event on tv's "How Do They Do It", "MythBusters", anyway, it was some such show.
Dang it! I just hate it when I know something but can't pull it out of those deep dark recesses of my mind. I'm pretty sure I don't have Alzheimers but it sure feels like "some-timers" when it happens..lol
I think I remember things like refrigerators, cars, watermelons,pumpkins and even a cow being tossed a long ways with one.
God bless,Mudd