Loki went back to Asgard and gave Thor his wife’s new hair, and then he gave Skidbladnir to Freyr, and Gungnir to Odin. And he boasted about how he went to the best dwarfs and no others could out do them in making such brilliant objects. Loki’s boasting was overheard by the two dwarfs, Sindri, Spark-Sprayer, and Brokkr, Metal-worker, who happened to be there. They challenged Loki and said they were every bit as good as the sons of Ivaldi, but Loki, not liking to be corrected, foolishly bet his head that they could not make three objects equal in splendor to those he had brought, and to his surprise they took up his challenge. Not wanting to take back his word Loki gave them three days to accomplish this task.