Laurie Souza thought she found the perfect Halloween costumes for her two pooches, Kiki and Peanut: the sheriff and the prisoner.

But it didn’t quite work out when she showed up to the Humane Society and Shelter’s Halloween photo shoot on October 6, as Peanut was instead dressed as a pumpkin.

“[Peanut] was supposed to be the sheriff, but her costume did not fit,” Souza said “Kiki is the prisoner because she steals all the treats.”

The event was a new twist on the Humane Society and Shelter’s popular photo shoot fundraisers, which had previously been held on holidays like Easter and Christmas.

“This is our first in what we hope will become an annual event,” said Karen Maciulewicz, president of the Humane Society and Shelter’s Board. “We’ve done these with Santa and the Easter bunny.”

Pets were encouraged to show up dressed in Halloween costumes, but for those who did not, donated costumes were for sale inside the shelter.

The options overwhelmed Sara Wazlawski, who took a bit of time to decide on a costume for her dog Reilly — a shelter adoptee. She picked out a bumblebee costume.

“I like how it fits her, and when she first tried it on she was jumping around,” she said.

Shelter manager Arianna Silva decided on a spider costume for little Romeo.

“It was cute and he’s short enough that the spider legs fall onto the ground,” Silva said.

Funds raised from the event will support the Humane Society and Shelter’s mission.

The organization is also preparing for its biggest fundraiser of the year, its 16th annual Give Me Shelter Gala. It will be held on November 3, 6-10 p.m. at the 31 Ventura Drive shelter. Tickets are $85 in advance or $100 at the door.

Call (508) 995-6661 to purchase tickets.