The Secret History says that Temujin's adopted brother Sigi Qutuqu was discovered in a Tatar camp wearing a gold nose-ring. That always struck me as odd because I've never seen any other reference to steppe people wearing nose-rings. Has anyone ever come across any other mentions of nose-rings and steppe tribes?
After looking into it I read that some Siberian tribes wore (and still wear) nose-rings. I've heard some scholars say that they thought the Tatars may have had Tungus roots. Maybe this was part of that Tungus culture.