Behold the Sax-A-Boom. This garish beauty is a toy instrument resembling a saxophone, apparently first released in 1998, with eight buttons and a speaker, with each button triggering a synthesised musical loop. It wasn't an especial hit at the time but, at some point, one found its way into the hands of Jack Black and Tenacious D.
Tenacious D has a live song, simply called Sax-a-Boom, which the band would crack out to the delight of audiences over the years. But it was Black's later appearance on Jimmy Fallon in 2018, during which he played a Sax-a-Boom alongside in-house band The Roots, that saw interest in the toy shoot through the roof. According to the Tenacious D wiki, and who knew that existed, Black's advocacy has seen the instrument become "highly collectable and rare."
