Oswald the Lucky Rabbit time, Felix the Cat and Krazy Kat. Universal was given the right to name the rabbit and it selected a name out of a hat. The first Oswald cartoon, "Poor Papa", was rejected by the Universal studio heads for its poor production quality and the sloppiness and age of Oswald. Disney, together with Iwerks, decided to create a second cartoon titled "Trolley Troubles" featuring a much younger, neater Oswald. The short, released on September 5, 1927, officially launched the series and proved to be Disney's greatest success to date. The storyline for Poor Papa was reused in a Mickey Mouse
Oswald the Lucky Rabbit acres of land in the desert. They also invested in an oil-drilling venture. Iwerks also invested his income in several stone mills to crush paint pigment he used to make paint formulas that were utilized by animators for decades. As time passed, Disney feared that Mintz would forgo renewal of the contract, partly due to Iwerks informing Disney that George Winkler, at the behest of Mintz, had been going behind Disney's back during pick-up runs for Oswald reels and hiring away his animators. Eventually, Walt traveled with his wife Lilly to New York to shop the series to other distributors,