I built some wing flags from some plans I found here. So far they seem pretty responsive. I'm sure different tail material will help and I may scale the vane up a little but these should work for 2-300 yards.
Here is the album to my build process.
Printable View
Weighed the vanes today and the poster board weighs 1.51g and the Coroplast weighs 3.56g. The poster board is much easier to work with and super cheap.
Good information. I'll have to make some myself. Thanks!
Was just talking about this, thanks