>Shiva
"…He wears a garland of skulls and a serpent around his neck and carries in his two (sometimes four) hands a deerskin, a trident, a small hand drum, or a club with a skull at the end.
That skull identifies Shiva as a Kapalika (“Skull-Bearer”) and refers to a time when he cut off the fifth head of Brahma. The head stuck to his hand until he reached Varanasi (now in Uttar Pradesh, India), a city sacred to Shiva. It then fell away, and a shrine for the cleansing of all sins, known as Kapala-mochana (“The Releasing of the Skull”), was later established in the place where it landed."
Before British occupation, Hindu temples regularly hosted ritual sex rites, and John Macafee described a temple he visited in Bangladesh where animal sacrifice was common, and they didn't let him into the main temple to see what was going on.