GEICO - Chatty Cathy
Summary: Using footage from an old Chatty Cathy commercial, the dolls talk about insurance.
The jingle goes "Oh Chatty Cathy, Oh Chatty Cathy. You're Mattel's famous talking doll. We pull the ring and you say 11 different things."
So far it seems like one of the old black-and-white Chatty Cathy commercials, but when they start talking, it's revealed to be a GEICO commercial.
Blonde Doll: My car insurance rates are too high.
Brunette Doll: Really? I just saved a bunch by switching to GEICO.
Voice-over: Just pull the ring. You'll never know what she'll say next.
Blonde Doll: Pull that string one more time. I dare ya.