Why does Sesshomaru have the thing of fluff on his shoulder?

Why does Sesshomaru have the thing of fluff on his shoulder?
Many believe that this is from the treasured teddy bear he once had as a child given to him by the woman who babysat him on the weekends while Cleopatra was out at a party. He later glued the fluff to his shoulder after it's demolition in the atomic bomb accident of 1548. Pandora will never be the same.