Wanted: Back pocket size container, IDEAS...???

[bulrush]

I was thinking of something waterproof. I have seen at Meijer and other major camping stores (Gander Mtn) a hard waterproof plastic case. They also have heavy duty waterproof bags about the size you want. They cost about $15-20. Seems like if it wasn't full you could roll it up and make it smaller. Add more air if you want it to float.

Great for canoing or white water rafting.

[Beans]

Hit the surplus stores and locate one of these

http://www.thompsonoutdoors.com/-p-100.html

Size: Size: 4.5" x 3" x 1"

or one of these

a genuine US Military issue Pilots and Aircrew Survival Fishing Kit in NEW condition. Sealed in the original package. Made in USA by New Horizons, Inc. NSN: 4220-00-244-0764. Sealed sturdy, brushed aluminum case measures 4½" x 2¾" x 1⅛"