I made a cache container one day and have it rolling(literally) around in the back of my car just in case I find a great spot for a cache. I used camo tape on a pringles can just because I had the can. After reading this bookmark list on the geocaching.com forums I realized that maybe placing it wouldn't be the best thing to do. Can you say "pipe bomb"? LOL It fits the profile of what most people who aren't in the "geocaching know" of what a pipe bomb looks like. So off to the trash with that one.

I would also like to say that the flimsy plastic glad containers are not really suitable either. They will not keep the water out and will break rather quickly.

Glass pickle jares can be broken and cut someone so those aren't a good idea.

I used to think the plastic gallon jars were great but almost every single one I find is damp inside. I have found 2 or 3 with half an inch or more of water in them.

Anyone else want to add their idea of the wrong cantainers and reasoning?