Scuba version

This is one of several designs I have come up with for use by SCUBA divers and other swimmers. It makes the largest bubble rings of all my designs--bubble rings generated by this version have travelled 18 feet through the water without breaking up. The sound of a large bubble ring as it travels past you is really interesting, I can't think of how to describe it just yet... maybe something like a cross between a large cat's purr, and warbling sound from some strange bird.

This design is covered by my second patent.