Kebabs with Sperm Sauce.

(click images, via) RakO was the first branded condom in Hungary. This nauseating bit of ambient advertising was created by their Budapest ad agency Insomnia. Yes, the copy line translates as "Non-drip pleasure." From the agency press notes:

"Many (young people) visit fast-food restaurants where they often eat kebab packed in the well-known foil which protects clothes from having unwanted sauce-drops on them. So this foil secures protection for everyone to enjoy the pleasure of eating a kebab. And it is a coincidence that RakO condoms have the same function: securing safe sex for people - with no dripping."

It sells condoms. It doesn't sell kebabs (at least with yoghurt sauce), though.
Previous ambient condom advertising:
• Flash Mob of Human Spermatozoa.
• Jontex condom umbrellas—it's raining (Se)men.