So I know we've talked about a Japanese influence on Elvish design before. While not Japanese, I thought some of these knives of the Ainu, and specifically some of the decorations, seem rather Elvish. Though maybe I'm still viewing it through the lens of the movies.
Knives and swords of the Ainu - [LINK]
Elvish knives of the Ainu
Elvish knives of the Ainu
Persona : Cimrandir - late 3rd Age Dunedain