My local dive shop Reefers and Wreckers have donated this bit of kit.
It is a Magnetic Octo clip. Split ring attaches to D ring on bcd or wing and Octo hose is fitted into other end. When Octo is needed then just give it a tug and its free.
Come on folks the auction has gone a bit quiet so lets try making some bids on items outstanding.
Edit: (How do you shrink these pics)