Vákniþir
Horn of the Vakner
All who hear the Vákniþir's echo from my throne here in Helgarðr have knelt in submission. The thunderous roar of this great artefact has determined the shape of this realm.The Vákniþir is a large horn made of sheet gold. Its origins are unclear, but according to the legend of Hálfdan's Voyage, the horn possessed great destructive powers and contained clues to a mysterious prophecy. It was lost when King Hálfdan Ubbasen sailed east and ended up at the bottom of the Kirreic ocean along with his horn. Hailed as a symbol of power and legitimacy by the Vakner of Henvikendal, the great horn is bound to crown whoever could find it as the next monarch of the Kingdom of the Henvikish.
Appearance
The golden horn is made from two layers. The bulk of it consists of a smooth horn with ridges, but overlayed on top of that is the collection of artistic depictions that portray different events. Most of the figures are depictions of humans, but some are more anthropomorphic or zoomorphic, and then there are hybrids that posses the head of an ox, rabbit or wolf, but the body of a man.
Some have suggested that the dividing ridges on the Vákniþir serve to group the artistic depictions into multiple separate chapters. The first chapter would then depict the horn-wielder's rise to power, and the second would show the unification of the Henvikish.
King Hálfdan predicted that the last one foretold his ascent into godhood, but he failed in his guest and perished in the process.
I think the last paragraph under appearance needs some editing, but other than that another very good idea :)