Know it when you see it
Rhino art at the Centre Pompidou. Better pictures here and here
Cattle advertisement in the Bankside area of London.
Take the form of some large animal and paint it Ferrari red. Then cover it with layers of gloss. Is the result art or advertising? The context in which we experience it seems to make all the difference. A museum or outside a restaurant?
Note: a more detailed, and impassioned exploration is in I Know It When I See It. But they start with the big red rhino, too.