Hey, I don't remember if it was this threas, but way back someone was looking for a camping knife / fork / spoon set that "nested together. I found one then, but always wanted one like my dad had when he was working for the Forest Service in 1937-1938.
GOT IT!
Bud-K catalog has them (Stainless steel these days) that have a knife, fork, spoon, and a camping combination tool with bottle opener, can opener, and the sleeve that holds it all together. The spoon is big enough to cook with or eat with and the knife needs an edge, but it's really usable.
Take a look. They're not expensive at all.