Saturday was a perfect h*cking day to watch good dogs and owners strut in their Halloween finery as hundreds gathered in Fort Greene Park for the Great PUPkin.

While all the dogs were adorable and worthy of infinite chin scratches, the winner was Chester, a "cater-pup," who crouched inside an articulated caterpillar-mobile...and emerged to reveal his butterfly wings!

The “catter-pup” 🦋🐶 #fortgreene #pupkin17 #nycfall

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Chester's human, Carrie Bilbo, made the incredible, crowd-pleasing costume.

There were some other fun "family" outfits, like these pups from IT:

Pennywise & Georgie

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...and Eleven and her toaster:

The Great PUPkin is organized by Fort Greene PUPS, a non-profit made up of dog owners who regularly use—and love—Fort Greene Park.

Click through the gallery, photographed by Sai Mokhtari, to see dogs dressed as Bill Cunningham, Bjork, Lady Gaga, Nicki Minaj, Marty McFly and many, many more!