Food and Politics

Recently I read in the news where a Chinese official accused a US Diplomat, of Chinese Ethnicity, of being a "banana" . Yellow on the outside, white on the inside.  I am familiar with the "Oreo" epithet but can't recall others, so the banana got me thinking.

1: what other metaphors (or is it analogies) are out there being flung on various ethnic dualists  .  I can't think of any though the "Oreo" slam needs revisited since Nabisco is selling a variety of combinations - yellow filling, green filling, yellow cookie, brown filling, brown filling with white filling and brown cookie,   How can we keep our heritage remembered when this kind of stuff happens (double stuff).
Don't know but if you know of any other food laws/judgments, let me know.  I'm curious

2: what metaphors (or analogies) can we add to the landfill of aspersions, not having been invented yet?
Ok, an Irishman that is sober is what?  A green pepper?  An avocado?  Green Apple? Spoiled bologna? There are so many interesting foods begging to join the list.  Cream-filled donut?  Hindi?  Mexicans, are they considered brown or red or what?  French have prominent noses (Gaul and Roman) but how do you wrap a food around that?  Help me!!!