I Sign!
As an evolving Item, this has
PHENOMENAL potential! I would most certainly buy it!
Also, here's what I have to add to it.
I know this is a bit macabre, but things like removing (or partially removing) legs and arms (whether just one or both with the ability to chose which side if just one) (By "fully" I mean up to the shoulder or hip. and "partially" would mean more towards the elbow/knee)
I know the Katawa shoujo Cos-players that want to be accurate would be very happy. And those who wish to give the illusion that the wings on their backs are their arms (without using the Kachina dancer wings, because those only cover and not actually replace or give the illusion of replaced) for things like Harpies. (I especially want this~ It would be wonderful to look more like a true harpy) or just those who wish to have a limb missing/partially missing.
Will make an edit example soon to show exactly what I mean (using the "Harpy" reference)
EDIT: Here it is~ The Harpy example.