An interesting option for a Sgian Dubh

[James MacMillan]

It's far more likely a deer foot, and it is a traditional european haft for a hunting knife. Usually germanic, but not always. A tremendous number of these things and similar were made for export to the US in the early part of the 20th century. The hair usually falls out, leaving them less than attractive, in the end.

And all the poor deer or goats, limping around with no foot!