All turkey hunters throw their wings away much to my dismay. I have gathered a small circle of hunters that save their wings for me, this year I sent 40 wings and 8 or 9 fans to David Mitchell at Custom Feathers, trading the rights to get the lefts ground.
I keep one friend in arrows and bows for his clubs wings, I bet he has brought me over 200 wings in the last few years.
If you collect wings be prepared to get some maggot covered specimens which used to turn me off. Now I put on my rubber gloves and go to work on them. David will trade you primaries for secondary wing sections skinned off the bone with with the skin, quills intact and boraxed. He has the instructions for their preparation on his web site.
One friend puts and add in the local paper during turkey season that she wants wings, and gets several this way.
Do a little leg work and asking around, you can be feather"rich" by the end of turkey season next year.