Either one would draw more interest if they were well done and nice looking.
I think coins of each sub-species of turkey would be cool, though I likely wouldn't get the set. I doubt that I'll ever hunt any species but Easterns (which is o.k). I have seen where call makers have inlaid coins into pot calls or box calls. I think they give each call character and look great.
Nothing personal, but I don't have room on my gear because the OG patch that already earned a spot there. I'd still probably buy one if they looked good.
Jim