Just about every major guitar maker has produced a ukulele (often misspelled ukelele) at one time or another. Martin offered three ukulele models to its customers in 1918. The diminutive 12- and 17-fret instruments were followed in the 1920s by concert and tenor models, while the Martin 5-K from 1922, with its koa wood body and abalone inlay, is much in demand among collectors.
Gibson introduced its first ukulele in 1926. The highly collectible Uke-2 and Uke-3 styles from that year had mahogany bodies and rosewood fingerboards. Gibson also made tenor ukuleles (1927) and a baritone model (1961).
Today, ukuleles are experiencing a revival, thanks in no small part to the sustained popularity of the late Israel Kamakawiwo'ole’s ukulele medley of “Somewhere Over the Rainbow” and “What a Wonderful World,” which has provided the soundtrack for everything from films to TV commercials. Aspiring musicians, with perhaps more good intentions than natural talent, also love them, probably because they are just so darned easy to play.
Not surprisingly, a host of guitar makers have jumped on the uke bandwagon. National makes an entire line of resonator ukuleles, from steel-body models to maple and mahogany ones. Martin and Gibson continue to make ukuleles, as does a well-regarded boutique ukulele maker named Barking Dog.