Crosby, Columbo, and Vallee is a 1932 Merrie Melodies cartoon short directed by Rudolf Ising. It lampoons the popularity of crooners among young women, with popular crooners Bing Crosby, Russ Columbo, and Rudy Vallée being the namesake of the film.

Bugs Bunny declares war on a magician.
Credits

According to http://www.imdb.com/title/tt0034585/fullcredits?ref_=tt_ov_st_sm :

Directed by
Chuck Jones ... (as Charles M. Jones)
Writing Credits
Tedd Pierce ... (story) (as Ted Pierce)
Cast
Mel Blanc ...
Bugs Bunny / Ala Bahma (voice) (uncredited)

A public-domain Bosko cartoon about a runaway boxcar.
Credits

Directed by
Hugh Harman (uncredited)
Rudolf Ising (uncredited)

Produced by
Hugh Harman .... producer
Rudolf Ising .... producer
Leon Schlesinger .... associate producer

Original Music by
Frank Marsales

Sound Department
Bernard B. Brown .... sound recordist (uncredited)

Animation Department
Rollin Hamilton .... animator
Carman Maxwell .... animator (as Max Maxwell)

Production Companies

Leon Schlesinger Studios

The Booze Hangs High released in 1930, is the fourth title in the Looney Tunes series and features Bosko, Warner Bros.' first cartoon character. When this cartoon aired on Nickelodeon, the part where the father pig regurgitates a corncob, flicks off the one kernel that remains on it, and puts it back into his stomach through a trapdoor was cut. This cartoon references Plane Crazy (a Mickey Mouse cartoon) and Song of the Flame (a musical operetta film). The latter features a song titled The Goose Hangs High from which this short gets its name. -From Wikipedia

Looney Tunes

Often-banned 1940 public domain Porky Pig video. Ends with a suicide bomber.

Ain't Nature Grand! is a February 1931[1] Looney Tunes cartoon featuring Bosko. It was directed by Hugh Harman and Rudolf Ising.

Bosko goes fishing but is distracted by a butterfly, who leads him into a song-and-dance routine with the nature around him. Eventually, two ladybugs drive him away, using a dragonfly as a fighter plane.

Little Orphan Willie 1930 Flip The Frog Sound Cartoon by Ub Iwerks