The Horn Triskelion consists in three interlocked drinking horns. It is a symbol such as the Triquetra which I have already written about on another post, and also with another very powerful symbol (Which I will write later about it) the Valknut. These three seem to be closely realated.
The Triskelion symbol or also often called Triskele, is a symbol with three fold rotational symmetry. The translation of the Greek word triskelion means “three-legged”.
This symbol is related to Odin once more, and symbolizes the act of obtaining the mead of poetry (The skáldskaparmjöðr) a powerful source of power or the power of the words, speach and knowledge. Summarizing the tale, Odin stood with the giantess Gunnlöð in her cave for three nights and had sex with her. By doing so, he gained access to the mead of poetry which she was guarding. Odin drank three times, three horns filled with the mead of poetry. After drinking the mead, he fled in the shape of an eagle directly to Asgard. The name of the three horns were so called, Óðrœrir, Boðn and Són.
In Norse Viking mythology the mead of poetry is a symbol of wisdom and poetic inspiration. According to the Prose Edda, whoever drinks it, becomes a skald.