The team over at Nervous System, known for their brilliant work with generative design applied to jewelry and home wares, have just released a new series of spiral puzzles. Instead of working from the outside in, or in sections, the puzzles are meant to be pieced together in a swooping spiral in the shape of an ammonite fossil or nautilus shell. The puzzles are made-to-order in New York from laser cut wood and contain a variety of whimsy pieces like octopi and seahorses. See more in their shop.