a couple of US guys requested a identity disc version so here it is for anyone interested. Painting is easy, simple brush in the colour of your choice and then put some white spirits or thinners on a rag and the wrap the rag around a sanding disc and wipe across the top of the plunger knob and the paint remains neatly in the patterns and then clean every where else.
you could print in the polished grey steel and then paint a light aqua blue in the grooves to get that classic similar look.
https://www.shapeways.com/search?q=swinksshooter