A five dollar bill, because Abe lincoln looks like frankenstein. Or it could be a five dollar bill that someone drew scars on good 'ol honest Abe's face, and bolts on his neck.
Ian: Hey man, spot me a frankenstein, i need to buy a some coke.
Jeff: That's pretty cheap, are you sure it's coke, and not carpet fresh?
man, someone drew some crap on Abe, now he really is Frankenstein, man, he's got a five head.
Made to not offend people, but actually creates a greater gaps between people of different races, religions, etc. It's actually worse than being racist, because it's the context of what your saying, not what you actually are saying, that matters.
Being politically correct was probably thought up by the KKK.