Build your own free-swimming biomimetic platform with help from the Navy’s first soft robotics STEM initiative. The SeaJelly project includes open-source CAD and PCB designs, Arduino code, build instructions, and reference materials. It is a great way to learn new concepts, gain hands-on experience, and encourage creativity. After your first build, try modifying parts of the design or exploring different SeaJelly applications – such as citizen science! JenniFish, a master’s thesis research prototype, was used as the foundation for SeaJelly. Have fun naming your own SeaJelly variant! Feel free to send comments, ask questions, and contribute new ideas by email to firstname.lastname@example.org.