Skaldskaparmal

Skaldskaparmal
It all begins when Loki betted on his head that the two dwarfs Sindri and Brokkr couldn't make more beautiful items than the Sons of Ivaldi. Sindri and Brokkr accepted the challenge and set off to the forges. During the production Loki would turn himself as a fly and tries to distract them. But despite the pain, they kept working. And some time later, they took Mjolnir out of the furnace. And that means Sindri and Brokkr has won the bet. They went to Loki and asked to behead him but Loki had other plans: Loki pointed out that in order to behead him they would have to cut his neck and the neck was not part of the bet. Brokkr then sewed Loki's mouth shut. Mjolnir was meant to be weilded with two hands, but since Loki bit Brokkr hard when he was supposed to be working on the furnace, wiping the blood away resulted the furnace to stop working and therefore mjolnir was only capable of being weilded with one hand.