what your thinking of would need to work on the same principle as
that oh so lovely bountiful treasure chest (or "DEc'OR Aquatique")
anyways, know you. chest lid void fills with air. buoyancy lifts lid on a hinge
large air bubble spills out.
or you could just pinch the air hose .
Last edited by buckwheet; 05-09-2014 at 03:40 AM.
Reason: spelling, buckwheet flunked kindergarten...lol