Picks have been made in a TON of different shapes.The most common is what most of us considered of consider the standard – the 351.The 351 has its origins with D’Andrea’s “Pick with the Crooning Tone”. Guitarist Nick Lucas, long associated with Gibson in the early 20th century. D’Andrea designed a pick for Nick, with his input. For many years, the 351 was referred to as the “Nick Lucas Shape”. Prior to this, picks were generally not used with guitars – mainly for mandolin and banjo. Fender got on the bandwagon in the 1950s by contracting with D’Andrea using the 351 shape with the unique Fender logo.