I recently completed the most unusual jigsaw puzzle I’ve ever assembled. It’s called the Geode Puzzle and is made by Nervous Systems.
The puzzle is made of laser cut birch plywood, cut in a dense, maze-like cut pattern. The pieces are very high quality and included a number of unusual shapes, including some nested pieces!
Though it looks extremely difficult, in reality, it’s like any puzzle: match the colors and shapes, and it just falls together. It took me a bit under 4 hours to assemble this ~150 piece puzzle.
Not a complaint, but an observation: the color of the puzzle didn’t quite match the photo on the box. Not a problem, but buyer beware.