Leave it to a troll to use a huge boulder as a rooftop. This Micro Mini Rock Red Door Troll House has all the hallmarks of the average troll's home. With that boulder sitting atop the actual building, it also features a lop-sided roof over the porch. Stone siding and a rustic wooden door complete the scene. A more authentic home for a troll would be hard to find, and this one is sized to work in terrariums and the tiniest of fairy garden settings.