A tumi is an ornate axe from Peru. It was once used for religious sacrifices and is now a national symbol of Peru. In Pre-Inca cultures, priests would use the tumi to cut out the heart of llama as a sacrifice for the sun priest to help predict the future. Tumis were also used for an ancient form of surgery known as trepanation, which involved removing a piece of the skull. Modern Peruvians hang this axe on their walls as a good luck charm.