Durex - Ring
Summary: A man seems to be proposing marriage to a woman, but turns out he's giving her a Durex ring.
The man and woman are having a romantic dinner, and under the napkin covering her bowl is a jewelry box. The guy looks on as she opens it, but says nothing. When she opens it, a buzzing sound is heard, and she smiles and says "Yes. I do."
The ad aired in Europe in 2006, and was predicted by some to be too racy for American television. Apparently not, because it started airing in the U.S. in 2007.