Making More Terrain

I've been using 3d printing to make gaming terrain. That's cool, but there's a time issue. That piece took a couple of hours to print. Doing enough for a large room takes days, or weeks for a sizable dungeon. Pieces can be reused, certainly, but that's still a lot of lead time, and if I want to have terrain representing, say, forest floor vs. natural cave vs. paved dungeon floor, that's