Mario Maccaferri (1900–1993) was an Italian luthier, classical guitarist, businessman, and inventor. He is noted for designing the guitar favored by jazz musician Django Reinhardt, and for designing plastic clothespins, plastic bath and kitchen tiles and the plastic Islander ukulele which sold millions of copies in the mid-1900s. From 1939 he lived and worked in the United States. As of 2016 his daughter Elaine still runs the family company French American Reeds Inc.