OK, I just sat an took a whole LOAD of screencaps and found some pretty interesting details....
Mini toggle switch can be seen clearly in pics 12 and 13.
The box itself appears to be a clear acrylic box (VERY similar to the Apple power adapter case) which has been painted black/gunmetal on the inside (not the outside) - this is most apparent in pictures 1 and 2.
The box itself seem to have 3 small holes in the side near where the lead comes out - one of the holes has some sort of small rod projecting from it - best seen in pictures 2 and 5. I can't see that these serve any kind of a purpose - perhaps they are features of the orginal un-modded box that was used?
The retractable cable does not simply appear to be clear, grey or black. It appears to be a sort of transparent grey (showing the wires inside) on one side, and on the other side it seems to be the same, but with a black strip along the middle. This side, due to lighting, often appears to be silver with a black strip down the middle. The cable colouration and detail can best be seen in pictures 3, 6, 7, 8, 12 and 13. Can anyone identify this type of cable? I've searched through LOADS of pics online and can find nothing.
The mouthpiece appears curved across two different axis - what would be the best way to replicate this in metal? Laser/waterjet cut, then bent? 3D printing? Something else?
Are the heads of the "nails" that go through the mouth pieces actually a part of the nails, or are they something that has been added seperately? If not, what kind of nails are these? Are the easily available? See pic 5.