Help with commercial meanings?

In my advanced English class, we've been getting in depth with symbolism. Our homework for tonight is to find a commercial that states the product and indirectly states the symbol and meaning. Ex. (Car insurance would be the product, white would be the symbol, and honesty would be the meaning). Can anyone think of a real commercial that would express this? I had been exploring Windex a bit, but I can't really understand why they use crows. Tips, anyone? 10 points for best answer!