Now you know where Bo Diddley got his stage name. He said, at a performance I attended that wires for his and others' diddley bows were purloined from window screens. Crushed cans shoved under the wire provided tension and support, and a glass beer bottle was used as a slide.
“Mr. Perkins, who dropped out of school after the third grade, taught himself the rudiments of blues guitar on a homemade instrument called a diddley bow: a length of wire stretched between nails driven into a wall.”