Kishkoman

A kishkoman, or whistle-knife was a unique weapon found in the Cold Lands.

Description
Kishkomans looked like a small animal horn only slightly longer than a child's hand. The broader base of the horn served as the handle and was perforated with small holes. When blown, the kishkoman emitted a high-pitched sounds that only elves could hear. This sound was used to call for aid to any within hearing range of the whistle.

History
These items were made form the horn of a small swiftstag buck. Mothers typically gave them to children when they reached an age where they could go off on their own.