In Norse mythology

Norse mythology

Norse mythology, a subset of Germanic mythology, is the overall term for the myths, legends and beliefs about supernatural beings of Norse pagans. It flourished prior to the Christianization of Scandinavia, during the Early Middle Ages, and passed into Nordic folklore, with some aspects surviving...

, Eitri (or Sindri) is a dwarf and the brother of Brokkr.

According to Skáldskaparmál

Skáldskaparmál

The second part of Snorri Sturluson's Prose Edda the Skáldskaparmál or "language of poetry" is effectively a dialogue between the Norse god of the sea, Ægir and Bragi, the god of poetry, in which both Norse mythology and discourse on the nature of poetry are intertwined...

, when Loki

Loki

In Norse mythology, Loki or Loke is a god or jötunn . Loki is the son of Fárbauti and Laufey, and the brother of Helblindi and Býleistr. By the jötunn Angrboða, Loki is the father of Hel, the wolf Fenrir, and the world serpent Jörmungandr. By his wife Sigyn, Loki is the father of Nari or Narfi...

 had Sif

Sif

In Norse mythology, Sif is a goddess associated with earth. Sif is attested in the Poetic Edda, compiled in the 13th century from earlier traditional sources, and the Prose Edda, written in the 13th century by Snorri Sturluson, and in the poetry of skalds...

's hair, Freyr

Freyr

Freyr is one of the most important gods of Norse paganism. Freyr was highly associated with farming, weather and, as a phallic fertility god, Freyr "bestows peace and pleasure on mortals"...

's ship Skidbladnir and Odin

Odin

Odin is a major god in Norse mythology and the ruler of Asgard. Homologous with the Anglo-Saxon "Wōden" and the Old High German "Wotan", the name is descended from Proto-Germanic "*Wodanaz" or "*Wōđanaz"....

's spear Gungnir

Gungnir

In Norse mythology, Gungnir is the spear of the god Odin.-Poetic Edda:In the Poetic Edda poem Völuspá, the Æsir-Vanir War is described as officially starting when Odin throws a spear over the heads of an assembly of Vanir gods. Whether or not this was specifically Gungnir is, however, unstated...

 fashioned by the Sons of Ivaldi

Sons of Ivaldi

In Norse mythology, the Sons of Ivaldi are a group of dwarfs who fashion Skidbladnir, the ship of Freyr, and the Gungnir, the spear of Odin, as well as golden hair for Sif to replace what Loki had cut off....

, 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.

Eitri began working in his furnace while his brother was working the bellows, but a fly

Fly

True flies are insects of the order Diptera . They possess a pair of wings on the mesothorax and a pair of halteres, derived from the hind wings, on the metathorax...

 (sometimes thought to be Loki himself) began stinging Brokkr, trying to stop him and spoil the items.

Eitri succeeded in making the golden boar Gullinbursti

Gullinbursti

Gullinbursti is a boar in Norse mythology.When Loki had Sif's hair, Freyr's ship Skíðblaðnir and Odin's spear Gungnir fashioned by the Sons of Ivaldi, he bet his own head with Brokkr that his brother Eitri wouldn't have been able to make items to match the quality of those mentioned above.So to...

, the golden ring Draupnir

Draupnir

In Norse mythology, Draupnir is a gold ring possessed by the god Odin with the ability to multiply itself: Every ninth night eight new rings 'drip' from Draupnir, each one of the same size and weight as the original....

, and the hammer Mjöllnir that made his brother win the bet, even if its handle was shorter than it should have been.