Check out this AD for Pepsi... It's dated pre-new logo but I think it has merit. It tells a cute story that can really resonate with both adults and kids. There is ample opportunity for product extension, Pepsi Penguins anyone?
Most Importantly this is an AD that can easily be a series. Imagine extending it to the social realm, choose the Pepsi Penguin's next adventure! Higher involvement, higher awareness!
If coke made Santa red, Pespi could make Penguins Pepsi drinkers