"Maus is in the house"- Simpsons episode #407

Those who missed the episode the first time around (i.e. on Nov. 18, 2007) will have to wait for a rerun to air to hear Jewish cartoonist Art Spiegelman utter the phrase "Maus is in the house".

However, thanks to the screen captures in this post, you can see how Art was drawn - with and without the mask.