Which musical instrument was played by Marilyn Monroe's character Sugar Kane in the film 'Some Like It Hot'?

Some Like It Hot is a 1959 American romantic comedy film set in 1929, directed and produced by Billy Wilder, starring Marilyn Monroe (Sugar Kane the band's vocalist and ukulele player), Tony Curtis (an irresponsible jazz saxophone player, gambler and ladies' man), and Jack Lemmon (a sensible jazz double-bass player).

Some Like It Hot opened to largely positive reviews and is today considered to be one of the greatest film comedies of all time. It was voted as the top comedy film by the American Film Institute on their list on AFI's 100 Years... 100 Laughs poll in 2000. The film is also notable for featuring cross dressing, and for playing with the idea of homosexuality, which led to it being produced without approval from the Motion Picture Production Code. The code had been gradually weakening in its scope during the early 1950s, due to increasing social tolerance for previously taboo topics in film, but it was still officially enforced.