I found the most hilarious Disney cartoon involving Donald Duck as a Nazi. The reason it was so funny is because it was so unexpected from a Disney cartoon. They even mention the Hitlers attempt to create a new world order.
click on the picture below to link to you tube to watch: "Der Fuehrer's Face"

*updated for better quality
Synopsis: A German "oom-pah" band parades through town extolling the "virtues" of the Fuehrer with the title song. They awaken Donald Duck who has to go to work in a Nazi munitions factory, much to his regret. You'll have to watch the video to see what happens.
Lyrics to "Der Fuehrer's Face"
This song was without a doubt Disney's most popular wartime accomplishment. After the short was produced, the song was picked up and made even more popular by Spike Jones and his City Slickers. For those who have never heard the song, the "phhhht" should be delivered with as loud and as juicy a raspberry as possible.
When der Fuehrer says, "We ist der master race"
We HEIL! (phhht!) HEIL! (phhht!) Right in der Fuehrer's face
Not to love Der Fuehrer is a great disgrace
So we HEIL! (phhht!) HEIL! (phhht!) Right in der Fuehrer's face
When Herr Göbbels says, "We own der world und space"
We HEIL! (phhht!) HEIL! (phhht!) Right in Herr Göring's face
When Herr Göring says they'll never bomb this place
We HEIL! (phhht!) HEIL! (phhht!) Right in Herr Göring's face
Are we not the supermen
Aryan pure supermen
Ja we ist der supermen
Super-duper supermen.
Ist this Nutzi land not good?
Would you leave it if you could?
Ja this Nutzi land is good!
Vee would leave it if we could
We bring the world to order
Heil Hitler's new world order (the idea didn't die with Hitler)
Everyone of foreign race will love der Fuehrer's face
When we bring to der world disorder
When der Fuehrer says, "We ist der master race"
We HEIL! (phhht!) HEIL! (phhht!) Right in der Fuehrer's face
When Der Fuehrer says, "We ist der master race"
We HEIL! (phhht!) HEIL! (phhht!) Right in der Fuhrer's face
When der Fuehrer says, we never will be slaves
We heil! Heil! But still we work like slaves.
While der Fuehrer brags and lies and rants and raves
We heil! Heil! And work into our graves.
When der Fuehrer yells "I got to have more shells"
We heil! Heil! For him we make more shells
If one little shell should blow him right to hell
We heil! Heil! And wouldn't that be swell?
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