Shiva is both destroyer or purifier and re-creator. The snakes around his neck symbolize power over evil and fertility. He wears a female earring on his left and and a males on his right which symbolizes sexual power and union.
Rudraksha has its origin from the Sanskrit words, Rudra and Aksha. Rudra is another name for Lord Shiva, and Aksha means eye. As per the old mythological tale, the Rudraksha plant was born out of Lord Shiva's teardrops, hence the berry is called as Rudraksha. Rudraksha berry are produced by Rudraksha trees in Parts of Nepal, Indonesia India. Ancient scriptures, such as Shiva Purana, Padma Purana and Srimad Bhagavad mention the greatness and wonderful powers of the Rudraksha bead.
In Hindu mythology this elephant headed god was the god of success and wealth, learning, etc, named Ganesh. He has the always helpful tendency to remove obstacles, making him pretty popular in Hinduism.