I think Malibu Barbie was the toy that started my fascination with California. It was later encouraged by TV shows, especially "CHiPs," but man, other Barbies had jobs -- they were Rockettes, or vets, or teachers. Malibu Barbie just lay around in the sun, with her sky-blue swimsuit and her Jackie O sunglasses.
She's so popular, in fact, that there have been numerous reproductions of her, so you can buy one for the child in your life, or the child in your heart. (Note that at least one of the repros comes with suntan lotion--back in 1971 we didn't care about saving our skin! We just slathered on the oil and laid back.)
Malibu Barbie was and is my favorite Barbie of all time. What's yours?