I'm a photographer who likes to take my SLR camera out backpacking (it's probably the heaviest thing I carry). I weighed my camera and lens bags recently, and realized that they weigh about half as much as the gear does! (These are Lowepro soft cases; not very protective.)
So, I got to thinking. For a lens case, I cleaned out a peanut butter jar and lined it with open cell foam. It weighs half as much as the old case, is nearly waterproof, and is much more protective.
Now, I'm looking for a large screw-top container to fit my whole camera in (preferrably with lens attatched). These are hard to find in the right proportions. I'm looking for suggestions on sources for such containers. I need one that's about 8 inches deep, with a lid at least 6.5 inches in diameter. Commercially available containers are nice, but too heavy. I'm looking for the cheap, more flimsy containers like a plastic jar. Any ideas? Think bear canister, but not so beefy.