Aw! A cute little yellow rubber ducky on a bright red Birthday card! The perfect playful greeting for that special little girl or boy celebrating their big special Ö Wait a minute! We just got this. Okay, in order to avoid a whole lot of uncomfortable explaining and F bombing, you might want to give this colorfully hilarious B-Day card out to only your "adult" friends, family members and coworkers. Hopefully, those lucky duck recipients will be able to get the hysterical joke at first quack.