>>508316I'd go with the nazi mess tin. You can hang it over the fire. It's a huge advantage. Aren't you worried about aluminium and health issues?
I have used a US canteen cup, but it's really annoying to attach sticks to the handles every time you need to put it over a fire. Now I have Zebra. It's cool, but the cover rattles once you take the useles inner part out. The inner part is good drinking cup for my dog when we're out but for hygienic reasons I have to listen the rattle.