Humble knows some of us have a little extra time on our hands lately, and they’re responding with this 3D Printable Dungeons & Dragons Lair Terrain Bundle. Pay as little as $1 to get some great tile, wall, creature, and object models to feed your 3D printer, and some printable papercraft models as well. Pay $8 or $15 to get even more of all that stuff, and support the Direct Relief charity while you do it!