Currently, on the food industry's voluntary initiative to reduce the marketing of unhealthy food products to kids, they have committed not to use third-party cartoon characters—for example, Mickey Mouse, Donald Duck, etc. However, they still use their own company-generated cartoon characters, such as Tony the Tiger, Toucan Sam, etc.
One way they could make healthy choices more attractive is to not use them on unhealthy food products but to use them on healthy food products. That's one recommendation I would make.