Remember those people who charmed New York City with "TipBombing" last summer, leading to impromptu (and generous) audiences surrounding unsuspecting street musicians?

They're back, with another feel-good plan of action.

New Yorkers Jamie Shin and Vito Catalani have added unusual Manhattan postings to room rental service AirBnB, offering, for example, a "one bedroom" in Union Square for $12 a night, or a "modern boho open space" for $10 a night.

Yes, you can book these rentals, and while you might find nice views and prime locations for shockingly low prices, you will not find a warm place to sleep. Each listing is an actual homeless New Yorker's outpost.

The project, meant to bring awareness to the plight of NYC's homeless population, raises funds for the cause. All of the profits made from these "rentals" will be donated to NYC homeless shelters, Shin and Catalani say.

If a listing doesn't pop up for you, you can, of course, still donate. Shin and Catalani suggest New York Rescue Mission, Goddard Riverside and Jericho Project.