I’m sketching a bunch of ideas for stencil graffiti, to become transfers for modern image railway modellers who want to add a little grit. So I thought I’d see what resources there are for stencillers online. (Update The stencil graffiti transfers can now be ordered from Spinneyworld.)
Stencil Revolution is an Australian collective. The tutorials and gallery sections are down at the moment because they were having security issues, but there are a few good examples still dotted around.
Banksy, of course.