Hello there. My name is Chad and I am a producer for a Discovery Channel show called "Smash Lab" we are currently working on an episode called "capsized boat" in which our host are trying to come up with clever ways to escape the boat, this is TV so swimming to the surface is not an option. Two of our engineers are looking to build a collapsible bell diving system that they can deploy, get into and then safely maneuver their way to the surface. This is something that has to be fairly easy to use under water and easy to navigate. I am looking for experts or directions that you guys may have. People that you might know, drawings, ideas, whatever might come to you mind. Thanks in advance for your time and I look forward to seeing what you guys come up with. I am in Los Angeles.