I-uh, I haven't really thought about it. But most of the kedan from the Metal are interested in these things, so maybe you could trade them for food? I know there some collecting those black cylinder thingies. I gave up trying to open them and sold them for a few juulan.

[Not a lot, but it was something.] But if you're low on food, I have some extra sea prune stew sitting in my freezer. It's a bit of an acquired taste and it's pretty nutritious. [There's a reason there's an abundance of sea prunes during the rationing.]