On September 5, 1927, Oswald the Lucky Rabbit debuted in the animated short “Trolly Troubles.” The short, which clocks in at a little over six minutes, was the creation of Walt Disney and Ub Iwerks, who chose a rabbit to differentiate their character from the glut of animated cats on the market. “Trolly Troubles” is springy and funny, with a lot of mileage wrung from Oswald’s gaggle of children (he is a rabbit after all). While Disney and Iwerks only completed 26 Oswald shorts for Universal Pictures, the character would become incredibly important to Disney (and later the company …