Here is one for you in Albuquerque, NM. I came up with the idea because I thought it would be neat and hadn't seen anything quite like it. Turns out it is quite complicated to keep it dry. The threading on the PVC tends to get dirty and allows some water to leak in. The solution we found was to keep a small watertight container inside with a log book. That way, the log will at least stay dry. (I hope.) The trade items will have to be somewhat water-resistant themselves until I can find a dryer solution. The design is a PVC with a portion filled with cement. The opening has a screw cap with another cap that fits over top. The idea was to create a water-seal by trapping in air in the top when both the screw cap and the external cap are applied. Actually quite a design, unfortunately, the concept doesn't react well to dirt. Oh well. Back to the KISS pricipal... I'm always open to new ideas though!
http://www.geocaching.com/seek/cache_detai...a7-59c639499eba
