Since I first heard of the idea, that the female toilet-sign is actually a (Super)man with a cape, I wanted to make my own signs with Superman and Wonder Woman. I designed these pictograms a few years ago as vector graphics but back then I didn't have a 3D printer and forgot the files on my computer...
I printed them on a glass bed and they are so extremely light that they stick to my doors without glue, only by their own adhesion!
The background is only 0.3 mm thick, the blue parts are 0.6 mm and the black parts 0.8 mm. This way it is printable with a single extruder by switching the filament between layers.
Just slice it with 0.1 mm layer hight and insert
G1 X10 Y5 ;move nozzle
M0 ;pause print
after the 3. and the 6. layer.
If you don't have a bowden setup, you may also want to home at least the X-axis with G28 X0 after pausing.