Federal rules mean a bourbon distillery can fill a charred oak barrel exactly once. Then it owns a growing pile of wet, heavy, expensive-to-move used barrels it would very much like gone. One couple in Nebraska started with forty of them and a Facebook auction.

A family farm sitting on a harvested corn field in October wants a paying October. It does not want to learn GPS field mapping, maze topology and crowd flow to get one. One man cut his first maze in 1996 and has since designed six thousand of them on other people's land.

Reef aquarium people will pay $325 for a coral the size of a fist. The market is almost entirely wild-collected imports with unpredictable supply and heavy mortality. One lawyer in Ohio has been growing them in a greenhouse since 2002 and selling the exact animal in the photograph.