This 1961 issue of Science & Mechanics features instructions for building an electric bass out of a 2 x 4 (left). Lot of other homemade instrument plans are available at Cigar Box Nation.
Read more in Music at Boing Boing
Mark Frauenfelder is the founder of Boing Boing and the editor-in-chief of MAKE and Cool Tools. Twitter: @frauenfelder. Come and hear Mark speak at the ALA conference in Chicago on July 1.