Some "forbidden cartoons" have found their way to (underground) video compilations or maybe YouTube has some
(but they soon get ripped down). In addition to the ones I've mentioned I've seen Disney's Der Fuehrer's Face which has some German and Japanese stereotypes (Donald Duck appreciates
America more after a nightmare about living in Nazi Germany)
http://en.wikipedia.org/wiki/Der_Fuehrer's_Face
Though oops, the article says DFF was indeed re-issued in '04
as part of a DVD set. "It won the 1943 Academy Award for Animated Short Film and was voted #22 of the 50 Greatest Cartoons of all time by members of the animation field in 1994."