It's come to this—girls swapping spit with tusked sea creatures in the suddenly bestial Skittles campaign [1] from DDB Chicago. Walruses do make the occasional cameo in advertising; BBH's pat-a-cake spot for Vigorsol gum [2] comes to mind. In the amusingly detailed Skittles spot, the walrus is presented as some sort of metaphor for Skittles Riddles, whose colors don't match their flavors. It's a little too much to chew on, but one thing's for sure—that beast's leathery, whiskered lips probably wouldn't taste much like fruit punch. Nice VFX by MPC.
Links:
[1] http://www.adweek.com/internal:node/138783
[2] http://www.adweek.com/internal:node/12478