Found objects, also known as readymades, are ordinary objects that are repurposed and transformed into works of art. The technique was introduced by the artist Marcel Duchamp in the early 20th century, and was used as a way to challenge traditional notions of art and to explore the relationship between art and everyday life. Found objects can include anything from a bicycle wheel to a urinal, and are often used to create works of art that are provocative, playful, and conceptually rich. The use of found objects has had a significant impact on contemporary art and has inspired a wide range of artists to experiment with new materials and forms of expression.