National Plastic Thumb Pick. Use this plastic thumb pick to pluck any stringed instrument of your choice. About National: John Dopyera started the National Stringed Instrument Co. in the mid-1920's in Los Angeles, California, which produced the first National resonator guitars. George Beauchamp, his partner, also is credited with resonator guitar innovation. National's mechanically amplified heyday came to an end in the mid-1930's when the guitar of choice for many of these musicians became electric. Not until the late 1980's was the National style resonator guitar made again by Don Young and McGregor Gaines who formed National Reso-Phonic Guitars, dedicated to re-creating the look, the sound, and the feel of the old Nationals and, in addition, creating new looks and louder sounds than ever before. Their instruments are used by slide players and finger-pickers in many musical genres: Hawaiian, blues, country, bluegrass, folk, and world music.