 Jigsaw puzzles have since come to be made primarily of cardboard.Typical images found on jigsaw puzzles include scenes from nature, buildings, and repetitive designs – castles and mountains are common, traditional subjects.However, any kind of picture can be used to make a jigsaw puzzle; artisanal puzzle-makers and companies using technologies to allow one-off or small print run puzzles allow a wide range of subject matter, from optical illusions, unusual art, or personal photographs.