Medical diagrams left folded through digitization, creating some mutant, multi- or non-functioning organs.
From various pages of The Philosophical Transactions and Collections to the End of the Year MDCC, Abridged, and Disposed under General Heads, v. 3, ed. John Lowthorp (1749). [Here]
For more like this, check out the forthcoming show FOLDED: Absurd Machines, Novel Topographies, Hybrid Creatures and Impossible Vistas, curated by Krissy Wilson of The Art of Google Books, at The Meadow, in Chicago, IL, between November 5th and 15th.