Airbnb markets in everything

Massachusetts man rents out igloo on Airbnb for $10 a night

Pierre, who says he learned to build igloos in Siberia, is offering the digs outside his Cambridge home, which ‘comfortably fits 1, or 2 if curled up.’

The full article is here, point from NinjaEconomics.  Sleeping bags are not included.  And here is an FT feature on living quarters in Japan:

Instead of the traditional 70 square metres, some of Glorio Eifukucho’s three-bed apartments are 60 sq m, a trend mirrored at new developments across the Tokyo suburbs, according to analysts and developers. Since bedrooms need beds, kitchens need stoves and bathrooms need showers, the living room gets squeezed.