With the current plentifullness when it comes to bindings and so, they already can pose as a bit much. However one more would not hurt, that being some kind of detachment binding. It could be something attachable, resulting in complete dissapearance of a certain body part or whole limb. Rather it just dissapearing until the binding's removed or it dropping onto the ground and needing to be attached in some way is for further judgement. Long story short, I think it would make quite an interesting addition.