Despite a series of Flip the Frog cartoons (which also included cameos by an unnamed mouse bearing an unmistakable resemblance to a certain Mortimer, né Mickey, Mouse), Iwerks was never as successful with his own creations as he was with Warner Brothers, where he produced several early Porky Pig cartoons. Iwerks later returned to Disney, where he developed much of the technology that combined live action and animation in Song of the South.
Nevertheless, his appearance in Fiddlesticks marked an important moment in the history of animation. So happy 82nd birthday to Fiddlesticks and Flip the Frog, one of a handful of dancing critters who paved the way for decades of animations after him.
Source: (Famous Daily, Gizmodo, Wikipedia, The Retroset, )