South African Oglivy campaign asks viewers to  decide the flavour.

 

"New Stimorol Mega Mystery is here. And we want you to decide flavour. But you're not going to choose between boring things. Like melon or apple. No. Mega Mystery is far more mysterious than that. In fact, it's so mysterious, it could taste like anything. Jazzercise or Ninja Warrior? Iguana or Ukulele? Pet rock or Karaoke? Whatever gets the most votes becomes the official flavour, and will be printed on the pack."