Here's a gem from the 40's that now is in the public domain, warts and all.
The "warts" in "Any Bonds Today?" happen to be a brief bit where Bugs Bunny (Mel Blanc) morphs into a parody of sorts of actor-singer Al Jolson in blackface. Today, that particular bit has been excised from cable screenings of this micro-short, which only runs just under 2 minutes. Bugs is joined at the end by Porky Pig (Blanc) and Elmer Fudd (Arthur Q. Bryan) for a closing number.