Laura H. ran a rough fingertip along the tiny, unfinished floorboard of the drawing room in her current dollhouse commission. Not the polished, gleaming parquet she’d painstakingly laid in the client’s display model, but the raw underside of the secondary flooring, deep within the third-floor annex. A phantom scent of old pipe dope-or maybe that was just memory from 3 AM-clung to her as she focused. Most people, especially those commissioning miniature mansions that cost upwards of $4,004, fixate on the visible: the intricate, tiny Tiffany lamps, the hand-painted wallpaper patterned with 44 distinct motifs, the minuscule clawfoot tubs crafted from pewter. They wouldn’t notice a discrepancy of 4 millimeters in a joist alignment, much less appreciate the nearly 24 hours she’d spent just on reinforcing the sub-structure of this single, particularly ambitious wing.