Yet more proof that I have the attention span of a small child I have started thinking about Drop Pods, specifically the old school Epic ones

and whether I can recreate them using ordinary, everyday stuff. To start with the ball float from a toilet - though preferably one that isn't in use - 68p from all good DIY shops

and the the very rough design. The valve has a diameter of 114mm, which make sit look huge compared to a Marine, but there has to be 10 of them with equipment, and if the top half is assumed to be cargo space and the bottom half landin yets and stuff it seems less over the top

I'm going to have an experiment with them, there are also cylindrical ones available, about the same height, but smaller diameter.