Thor’s hammer pendants and authentic mjolnir pendants. Browse our collection for mjolnir necklaces that have gone through artistic development. In Norse mythology, mjolnir was a powerful weapon wielded by the Norse god Thor. Vikings wore Mjolnir necklaces and Thor's hammer pendants for protection. Archaeological excavations throughout Scandinavia have unearthed more than 50 Thor hammer necklaces and Mjolnir Viking pendants dating back to the Viking era.