I currently work in the licensing department for Hallmark, Inc. I am a former Art Director for MAD Magazine and was a key Art Director at Golden Books marketing division. I have worked with such licensors as Warner Bros., Nickelodeon, Disney/ Pixar, Harley-Davidson, United Media, Mattel, NASCAR, Lucas Films, Sesame Street, Cartoon Network, DC and Marvel Comics, Hit Entertainment, Dr. Seuss, Nintendo and many others.
I can't tell you how many pieces from MAD Magazine won awards in art and design shows. There were at least a dozen every year. The rule to which we all subscribed was that each piece was collaborative between artist, writer, designer, art director, editor, etc., so no one person could claim credit.