Rainy weekend over here with nothing much planned, so an excellent time for us to arts&crafts ourselves our own dungeon dice - inspiration from Dyson. Here's our 5x5 cm geomorphs on grid paper. Roll the dice, arrange top sides as you like, and there's your quickie dungeon.
About productivity. In one day, I managed two of these cubes with little mini-dungeons on each side. My wife made four in the same afternoon, three more the day after, and is now experimenting with a version in wood, either to stamp or to shape clay. I stand in awe.