Chitin is a tough, flexible, and somewhat translucent polysaccharide found in the exoskeletons of arthropods, the cell walls of fungi, and the scales of fish and cephalopods.

Therefore, the organisms that make chitin are:

* Arthropods: This includes insects, crustaceans, arachnids, and myriapods.

* Fungi: These include mushrooms, yeasts, and molds.

* Some fish and cephalopods: These organisms have chitin in their scales and beaks, respectively.

It's important to note that while chitin is a common structural component in these organisms, its exact composition and structure can vary depending on the species.