Have you checked out "Beyond Your Backdoor"? It's a nature store and a new division of Lesser Jewellers.
This is a scuba shaped cache, that is waterproof and are engraved GEOCACHE.
It comes with two Rite in the Rain log sheets.
The dimensions of the container are approx. 5.5 x 2 cm, or 2.4" x 0.7".
Remember to follow Geocaching.com regulations and respect private property when hiding caches!