Introducing Phrosties, Alcoholic Slushie Delivery Service

PHOTO: An order of alcoholic slushies called Phrosties, available in New York City.
Courtesy of Peter Mishu
An order of alcoholic slushies called Phrosties, available in New York City.

Here's one way to cool down this Memorial Day.

A new delivery service in New York City is hawking rainbow-colored, boozy slushies for $10 a pop.

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It's not clear what exactly is in the sugary, frozen drinks, called Phrosties, or where they're coming from -- mysteries that have health officials worried.

New York's State Liquor Authority is reportedly investigating the source.

For now, customers order by texting a phone number listed on Phrosties' Instagram page.

Deliveries -- for a minimum of four drinks -- are made 24 hours a day, according to the account.

One recent tester told ABC News his order took two and a half hours to be delivered. But be warned: One drink got him drunk, and some Phrosties tasted boozier than others.