As an Inner Mongolian, let me help you to answer this question. There is no such thing as exorcism. In the past, Mongolians wore wolf teeth, bear claws and even bear teeth, which was a symbol of courage. If this beast was conquered by you, you would take some teeth or bones and claws as your trophies. Now it is impossible to kill animals, so the old things in the past are also called ornaments to wear. Some people will add some meaning, which is called exorcism.