The wing idea is cool. Something with a light behind it would be cool. Fish shapes. Cut to desired shapes it would make great fill pieces in sculptures. Say maybe a birds chest. cut the shape, heat in the forge and dish it on a stump to get the contour.
You could cut some and forge a border and make a flat standing fire screen. Or square fire surround.
They might be less springy and easier to manipulate if you heated them in a bonfire. ( just posted then saw Thomas just mentioned this)
Were it me, I would stock up on it and know it's there for when an idea strikes.