Answer: Many older TV shows, and or movies. Barbie's dream house is an obvious one, but older Disney movies such as Snow White, Beauty and the Beast, and Sleeping Beauty are all examples of protagonists with unrealistic bodies that can make little girls (and occasionally little boys) insecure about the way they look.
Explanation: Poor self-esteem often contributes to problems in relationships, the workplace, and any area in life that requires confidence. Ultimately a negative body image can lead to unhappiness and depression both of which are also symptoms of low self-confidence.