Some of my characters have made dragon armor (both the light and heavy versions); I've even made some for companions. Other characters don't get that involved in smithing. Even so, I cannot bring myself to sell them. I usually end up keeping them in a chest or some other container?
So what do you do with your unused dragon parts? Do you sell them, display them, put them in a container, or what?
Mine are all left back in Breezehome. I just keep them there. I plan on never making dragon armor. Just not into the looks, etc. I keep all my armor light and stealthy. I actually should go back there and sell them all, well at least most of them. I'll save a batch just in case. I stop a long time ago picking them up after the kill. Pain in ass. Dragons bug me now so I don't do the main quest anymore. Keeps them out of the sky.