You may have heard about this story, but the idea that the art was done to examine the reactions to it is pretty interesting. Some more details in this piece.

I wonder if the majority of pro-choice people reacted with skepticism while the majority of anti-choice people reacted angrily. Personally, I thought the whole thing was horribly stupid, until I learned it was a hoax, at which point I think it was brilliant.

(link)