Kids were more likely to grab an apple for a snack if it had a cartoon sticker.
A new study out of the Cornell Center for Behavioral Economics studied the food choices of 200 students who were offered cookies and apples with lunch.
Some days the apples featured stickers of popular cartoon characters, like Elmo.
They found kids picked up fruit more often on the days it had a sticker. They nearly always took the cookie too.
Experts say they are taking tips from manufacturers of unhealthy kids' snacks -- who often use cartoon characters to promote their products.