I showed love for the crystal skull. Of all the macguffins in the movie, besides the Holy Grail, the crystal skulls have the most mysterious history. The Grail is debated whether it exists or not, the Ark, no one knows what happened to it really. The Sankara stones or shivalingum, are a groundbased object in the Hindu religion, but no one really knows if the skulls are fakes or real deals. Some are fakes but there is always the mystery of how they came to be, why the artists decided on quartz crystal to carve the deity idols. They just facsinate me.