As a young boy, Shannon built a telegraph system connecting his house to a friend's house and constructed model airplanes, showcasing his early interest in engineering and communication technologies.

Shannon designed a chess-playing machine that could play endgames. This project demonstrated his interest in artificial intelligence and the application of information theory to game-playing.

Shannon built several juggling machines that could juggle multiple balls or objects. These machines showcased his understanding of mechanics, control systems, and the principles of juggling.

Shannon enjoyed riding a unicycle and also created various other mechanical devices, including robots, flame-throwing trumpets, and other whimsical inventions. These projects reflected his playful creativity and his ability to apply his engineering skills to a wide range of challenges.