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.
According to Skáldskaparmál, after these objects were created Loki made a bet with a dwarf, Brokkr, that his brother Eitri (or Sindri) would not be able to craft items to match the quality of those displayed by the sons of Ivaldi. This contest resulted in the creation of the boar of Freyr (Gullinbursti), the ring of Odin (Draupnir) and the hammer of Thor (Mjolnir), which were judged by the gods to be even more wondrous than the others. Thus, Brokkr had won the bet.
The account of this tale given in Skáldskaparmál does not reveal the names of Ivaldi's sons, nor how many there were, and they remain conspicuously absent after their initial mention in the stanza. The passing mention made of them in Grímnismál 43, the creators of Skidbladnir, "the best of ships", likewise sheds no additional light. Thus, their identities are a matter of scholarly speculation.
Sons of the sea, sons of the saint,
Who is the child with no complaint;
Sons of the great or sons unknown
All were children like your own.
The same sweet smiles, the same sad tears,
The cries at night, the nightmare fears,
Sons of the great, sons unknown,
All were children like your own.
Sons of tycoons, or sons from the farms
All of the children ran from your arms.
Through fields of gold, through fields of ruin,
All of the children vanished too soon.
In towering waves, in walls of flesh,
Amid dying birds trembling with death,
Sons of tycoons, sons from the farms,
All of the children ran from your arms.
Sons of your sons, sons passing by,
Children were lost in lullaby.
Sons of true love, sons of regret,
All of your sons you can never forget.
Some build the roads, some wrote the poems,
Some went to war, some never came home.
Sons of your sons, sons passing by,