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The "Museum of Ordure" is a self-institution founded in 2002. It explores the cultural value of ordure, or human waste, and aims to raise "base material to the level of art." It began as an online project and includes public collections of items like different versions of The Communist Manifesto and a curated film programme. "What is shit for some," the Museum states, "has value for others."
More on the museum can be found on Wikipedia and on the website of Stuart Brisley. Some examples of projects include: World in Motion: Films from the Collection of the Museum of Ordure (2014), exhibition at Kunsthal Aarhus, see interview; and 01.01.CM: Collection of the Museum of Ordure, a book published and available from Antipyrine.