The engine Bells are two more of the same ribbed acrylic cups with two plastic tap handles glued on as nozzles.
The ribbed central section sides were a cheap Styrene plastic lampshade. Behind those are two halves of a plastic blender cut on the bandsaw.
The shape below the command section is a 1/25 scale Le Mans racing car kit.
Below you can quite easily make out the Blender jug shape on its side.
Inside the plastic tap handle nozzles are a couple of Short Sunderland kit engine cowlings.
I have some new ideas about finishing this... one day.
The model length is 930mm