I thought about a curved airfoil, bit I wondered if the Re numbers that these fly at it might create more drag than lift? Anyway, I went with a KF type that seems to make it stiff enough.
This what I have so far today, I have go carve pumpkins
It weighs 31gm. without pushrods, hope it's not too heavy, I don't recall what the others came it at. After a little bit of Sharpie art, it certainly won't win any scale contests, but I think it at least captures the spirit of a Blanik.
Hopefully it will fly tomorrow.