According to The Encyclopedia of Animated Disney Shorts and the Big Cartoon DataBase, "Don Donald" is considered Daisy's debut. In addition to this, "Don Donald" is included on the Disney-produced DVD "Best Pals: Donald and Daisy." Donna's identification as an early Daisy is aided by the fact that other Disney characters, such as Goofy, were also introduced under different names (Dippy Dawg), appearances, and mannerisms. "Donna" in Italian is also the female equivalent of "Don", the title Donald takes in the film's title. In 1999, Walt Disney Company released a collector's pin as part of their "Countdown to the Millennium" pin series, which reads "Daisy Duck debuts as Donna Duck 1937."