While waiting to spray the hull/deck etc. I'm picking items to make at random from the drawings, today I chose the diver decompression camber, then spent some time looking for bits to make it with, came up with a piece of overflow pipe, it was 5mm too large across the diameter, so had to cut a section out and by warming it managed to close and glue it to make it smaller, next was the domed ends these were done with an old aircraft aluminium spinner by heating it and pushing a piece of .5mm styrene over it, turned out ok, well that was to hard part, the rest was just adding pieces to make it look similar to the drawing, I'll add some brass etch valve wheels later.