First, there is the Pepsi commercial with the polar bears. Just watch and listen to it.
Second, are the ads by Summer's Eve. Alexis Garrett Stodghill over at The Atlanta Post has a great post about the stereotypical ads, make sure to read it (link below).
The campaign is comprised of three different ads, each depicting a woman's vagina - talking as a vertical "mouthing" hand. That sounds bad enough, but what makes the "Hail to the V" campaign disgusting is how the race and culture of each lady part of color is made aggressively clear. While the white hand gets to talk in an educated voice about wholesome things like going to the gym, the black hand talks about weaves and hitting the club - and the Latina hand? She derides her owner’s tacky leopard thong in a string of Spanish-laced saucy talk. Really Summer's Eve?