A 'nail' to use for the old and rare yarn craft of Nålebinding, which has many spellings.

I can't nailbind, but I've designed these for people who can.

The Wikipedia article on naalbinding: https://en.wikipedia.org/wiki/N%C3%A5lebinding

Here are two files, both with two holes and are asymmetrical in the z-axis. One has slots along the length for grip on one's fingers and the other is plain. They are 70mm8mm3mm in size.