When the boys returned from the war, Samuel Jr. and Frederick attended Washington State University, and later got a job in the Army.
Samuel Kamaka semi-retired early in 1952 due to illness and went to the family estate in Waianae to make ukuleles.
Two hearing-impaired individuals were hired as craftsmen, and were found to be exemplary workers, because of their enhanced sense of touch, which allowed them to craft better ukuleles, able to feel the thickness of the wood.
The instrument features solid master-grade Hawaiian curly koa wood and a Fishman pickup.
According to one music store on Maui, Hawaii, Harrison would purchase all the Kamaka ukuleles in stock to give to his friends as gifts.
It appears in the movie's official poster and on the cover of the DVD and soundtrack, although the ukulele was digitally modified to resemble a 4-string.