Some resources that contain information on how to build your own shrimp trap are the Fishy Fish and Planet Inverts websites. The website for the Food and Agriculture Organization of the United Nations also features detailed information and diagrams on shrimp traps.
Functional shrimp traps are made in a variety of different materials. Some of the most common commercial varieties come in wire mesh formations, while some simpler variations that individuals can make are made with a simple bottle. While designs may vary based on materials and sizes, all shrimp traps need to be outfitted with bait and have sufficient circulation for the captured prey.