I collect small pocket knives.
This is what I carry daily.Non locking 3 inch hawkbill.Good for tightening screws,sawing roots on a dig and can still whittle a man down to size.
I collect Solingen Germany made pocket knives.Kissing cranes,hen and rooster,fighting roosters are all good top shelf brands to collect that increase in value.
A few from my collection
Solingen made switch blade