This was a quick 20m job in openscad, importing a House Targaryen symbol and making it into a plaque.

Wanted to try out the colour swapping based on layer on my Prusa i3 MK2S and this seemed like a good idea. Really loved how it turned out, but had to print 2, on the first one got the layer change wrong and it printed the first layer of red on top of the black so I didn't get the contrast I wanted.

I've included the STL for the thing, it's big because I used a high res image and I wanted to print it big, the one in the picture is 146mm diameter.
I've also included the gcode I used to print it, should work on a Original Prusa i3 Mk2S using PLA, of course you can use the STL to slice however you want, but the gcode already includes the M600 for layer change at the right place :) and the black portion is optimized to print at 0.25mm and then switches to 0.1mm for the Dragons detail.

Print instructions

Print at 0.2mm apply the change colour after the base is complete, works better with two contrasting colours.