Keeping a 3-year-old girl away from Disney’s princesses is a lot like trying to get through January without hearing about the Super Bowl. Since Walt Disney lumped Sleeping Beauty, Belle, and its other poofy-dressed ladies together under the brand Disney Princess in 2000, the market for all things pink and sparkly has skyrocketed. Princess merchandise—dolls, clothing, games, home décor, toys—is a $5.5 billion enterprise and Disney’s second-most-profitable franchise, after Mickey Mouse. ... Disney doesn’t manufacture most of the Princess products. It licenses them to all sorts of companies: Glidden makes pink and purple wall paint, Stride Rite makes sparkly shoes. In toys, the most lucrative Disney Princess license is dolls. Specifically, 12-inch Barbie-esque figurines that girls can dress and undress until the dolls’ hairdos get tangled, they’ve lost their shoes, and it’s time to buy another. ... Mattel has worked with Disney since 1955, when it became the first sponsor for the Mickey Mouse Club, and it’s been the company’s go-to dollmaker since 1996. Last year, Mattel put the size of its Disney Princess doll business at $300 million, though analysts at Needham say it’s closer to $500 million. ... The princess business disappears on Jan. 1, when Disney packs up its glass slippers and takes them to Mattel’s biggest rival, Hasbro. ... Hasbro, meanwhile, has traditionally kept to the boys’ side of the toy aisle, with brands such as Nerf and Transformers. But it has big plans for the princesses.