Stormi Webster, 3, had a fun-filled Halloween, and her mom, Kylie Jenner, shared photos from the occasion. This year, the three-year-old dressed up as a mermaid, and her costume was definitely spot-on. Stormi wore a teal green outfit, adorned with pearls and seashells. She even had a crown with a seashell on top! Her skirt was sequined and she carried a cute seashell-shaped purse with pearl handles.