“No just a Barbie. Let’s not overdo the princess thing, okay?” The twins recently had their first haircut with Princess Charlene sharing several snaps on her Instagram account from the day. Just a few days later, Princess Gabriella and. Global sales of Mattel’s other girl brands rose 12%, thanks mostly to its Disney Princess lineup. So here’s the holiday quarter snapshot: Barbie faded, the air went out of Mattel’s Wheels…