Besides my Mora companion that I use for pretty much everything, I'd often carry a secondary blade for processing food.
I like heaving this knife hang around my neck in order not to lose it and simply for easy access in case I have plenty of layers on me.
You can make a similar sheath for any folding knife basically, and this is the same method I used for making a Bahco Laplander sheath.
You can punch holes with an owl or even an old fork.
![](https://s2.save4k.ru/pic/H9TT67XlJB4/maxresdefault.jpg)