After spotting the photo below (which is one of those endlessly, shamelessly Pinterested-shots with no attribution, making tracking down the original creator impossible), Nagoya-based Tori Sugimura figured he'd try making a traditional Japanese version.
After successfully learning to craft his tiny power-outlet-covering sliding shoji screen doors, he caught the attention of a Japanese television show; the original clip is here, for Japanese speakers. Interest in Sugimura's wares subsequently exploded, and they're for sale on his Tori Craft website.
Unsurprisingly for a Japanese craftsperson, Sugimura spends a ridiculous amount of time getting the details right. In the cheerfully-scored video below, you can see that he not only hand-cuts the tiny half-lap joints for the shoji crossmembers, but he even uses a miniature chisel to carve grooves into the rails and stiles that take the solid panels: