With "Frozen" fever showing no signs of thawing, it's no surprise that costume shops and manufacturers are betting big on the Disney franchise this Halloween. That gamble is already paying off for Yandy.com, an online shopping destination known for its sexed-up costumes.

After making headlines for its racy take on Elsa and Olaf—a look that consists of a leotard and stockings, but is absent pants or shorts—the costumes are no longer available on the retailer's site. A customer service representative said the costumes are sold out, and the company is not yet sure if it will restock before the holiday.

Yandy declined further comment.

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Over the past few years, Halloween manufacturers have faced growing scrutiny for the absurdity of some of their "sexy" offerings, which run the gamut from bubble gum machines to a slice of watermelon (with a bite missing from the side, of course).

In addition to "Frozen," Yandy made Disney's "Maleficent" and NBC Universal's "Despicable Me" minion character costumes shorter and tighter.

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Both online retailer Zulily and Savers thrift stores listed "Frozen," which hit theaters after Halloween last year, as one of their top costume ideas for 2014.

With Halloween falling on a Friday this year, costume stores are expected to see a bump in sales compared with last year, as some young adults will celebrate on both Friday and Saturday—meaning they could potentially buy more than one costume.

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The National Retail Federation said last week that more than two-thirds of people celebrating the holiday will purchase costumes, the most in the survey's 11-year history. Total spending is expected to reach $7.4 billion, up significantly from last year's forecast for $6.9 billion.

Disclosure: NBCUniversal is the parent company of CNBC and CNBC.com.