I'm a bit like Alan. When I visit a fleamarket and I see an inexpensive folder, I just buy it. Goes together with the rest.
I've been doing this since I was in school (and that's a long time ago). From every schooltrip, I returned with a small knife. Must be in my blood
Just can't help it.
When we (from the States or Europe) talk about etnographic knives, we always think about knives from China, Japan, Afghanistan, etc.... People living on that side of the planet might consider European knives also as typical and etnographic.
Here are some which might fit into that category : Opinel, Albacete and the unknown knife with horn grip.
Finally a portion of what I found the past few years : from tourist knife to Swiss knife. And there are a lot more in my collection.