CNN just aired an ad for this T-shirt. In this case the bias is more for making money off history than anything: those of other political persuasions are welcome to buy Naked Cowboy Predicts McCain Landslide instead.
But really, what can top the tear-jerking inspiration of Higher Income Voters Swayed By Obama? Those probably being the citizens most likely to blow 15 bucks on a T-shirt from CNN.com.
[Update: Fairness requires disclosing that, as I write this, my time.com blog page is displaying an ad for this Time commemorative. Change for us all! Or rather, 19 bucks and change for us all!]