Some of my trailmates carry a G.I. canteen and thrive on oatmeal steeped in powdered fruit drink. I drag out my Dutch Ovens and my horses pin their ears. Rational people find something in between ;o) I think your biscuit tin would be splendid for gathering wild foodstuffs, or whatever else you think to pack in it. If you get any comments mention the massive wooden desk the Franklin Expedition was known to have hauled over the iceflows!