Les,

Look for an old Indian fire pack. Usually they are galv. but some of the old ones were brass and they still make them in stainless. Lots of rural fire departments got rid of them a few years ago (when money was not as tight) and got lighter ones. Some still have some around that they no longer use. I have never seen one that had anything but water in it. You can put a hose on the sprayer for a shower if you don't hang it, we used to do it in fire camps all the time.

Respectfully,

Jerry