I had been looking for some folding knives for my son and oldest daughter. These knives had to had locking blades, because I myself had had some unpleasant experiences with blades snapping shut when used.
Someone handed me an Opinelknife so I could have a look at it and I liked it a lot!
Wooden handle, simple locking mechanisme and small enough to fit in a child's hand; the Opinel No.6.
I ordered some and when they came in I saw they had a kind of orangie colour, which I didn't like. So I tried to sand that colour off, but it didn't quite work out the way I wanted it too. I guess it is soaked in oil or something similar. I could have spare me the trouble, because the owners-to-be actually did like it that way!
A knife like this needs a sheath to and these were fashioned in colours chosen by each one of them.