My sister and I remember a plastic doll that had a tiny body and a massive head. You could pull the head away from the body (it was attached by a drawstring) and while the body travelled back to the head, the doll would say a few phrases in an American sounding accent. These were "Carry me, I'm portable", "I can fit in your pocket" and the one we both remember with great fondness "I'm pretty tricky, hoo hoo"! I vaguely remember it having black hair, a really cute face with big eyes and wearing a yellow dress or jacket. It would be 1970's. I've no idea what this doll was called but I would love to find out what happened to it.