http://www.mtmcase-gard.com/products/camping/dry_boxes.html Some time ago I was thinking on doing up some boxes for the DR. I was gonna use the huge ammo cans, but as Mssr Blume pointed out...20# each *empty* was a bit over the top. These look like the trick bit. yeah they aint as sturdy as a metal can. but I bet you can cobble them together with duct tape should you bust one, finish the trip and then just get another. The online places have them for under 20 bucks each.