One of the things about printable terrain for D&D and other square grid based games is that their floors are really nifty. Stone tile textures, brick floors, curved sewer floors, and lots of other textures which I don't have the chops to reproduce at the moment. But I'm working on it. The easiest thing for me to start on has been tile-like textures. That's basically just imposing a rectangular grid--a slightly irregular one for character in this case--on the raised hex surfaces. These took to painting pretty well, I think. The design is, of course, over on Thingiverse . Then I was thinking about floors with a wooden texture. And I remembered I own a CNC machine. These are a bit rough. I recently replaced some old belts and pulleys, and I think one of the pulleys isn't tight enough, so I'm losing the occasional y-axis step. Still, they're good enough to be functional. In my copious spare time, I'll probably stain and shellac these.