A moving jaw (20) is spring-urged (45, 55) against a fixed jaw (10, 110), to capture picks (70) and other like stringed musical instrument accessories therebetween. The fixed jaw (10, 110) is configured for either adhesive mounting (60) onto and extending exterior to a stringed instrument surface, or embedding interior to and coupled (118, 131) with the surface (80) of the stringed instrument. Picks (70) or other accessories are oriented perpendicular to the instrument surface (80), and one or a plurality of picks (70) may be inserted into and removed from between the jaws (10, 20, 110).