A job I did a few years ago for a line of children's books which were aimed at those with a less than stellar grasp of the written word. The stories were quite good fun, if not especially imaginative.
There were an awful lot of PC hoops to jump through, I seem to recall -- I'd make a character Asian and then be told to make them look Asian instead of whatever it was they thought I'd drawn. I knew they'd freak if I exaggerated any ethnic features, so I usually just resubmitted the exact same roughs. Seemed to keep them happy.