There's something going around that Ariel was the only Princess to never wear hair accessories. That's wrong, as evidenced here, and that she had to keep her hair back while on the surface. Pocahontas, in the other hand, never wore hair accessories.
The original Tinkerbell was a brat, and I loved that about her. It made her seem so real instead of perfect. Her brattiness was a huge part in Peter Pan. Now Disney made her nice and have 3 billion sequels.