 Eitri

In Norse mythology, Eitri (or Sindri) is a dwarf and the brother of Brokkr.According to "Skáldskaparmál", when Loki had Sif's hair, Freyr's ship Skidbladnir and Odin's spear Gungnir fashioned by the Sons of Ivaldi, he bet his own head with Brokkr that Eitri would not have been able to make items that matched the craftsmanship of those mentioned above.