Furry friends proudly displayed their finest Halloween costumes and sales from their humans' purchases went toward helping other four-legged furballs. At the event, 50% of sales from the seasonal margarita and Day Drinker Light Lager benefited the One Love Pitbull Foundation in Chandler and Valley Dogs Rescue in Tempe.
Here's a look at the ferocious and fuzzy pups in costume.

Tucker (left), Wilson (right), and their owner, Jessica Merryfield, attend the Howl-O-Ween Dog Costume Contest every year. The dogs are dressed as characters from "Dumb and Dumber," and Merryfield is dressed as Mary Swanson.
Carlos Rene Castro

Rescue dogs Moses and Carter, both dressed as pumpkins, participated in the Howl-O-Ween Dog Costume Contest in Tempe. These poodles are available for adoption through Valley Dogs Rescue.
Carlos Rene Castro

Walt, a 2-year-old Dalmatian, at the annual Howl-O-Ween Dog Costume Contest at Pedal Haus Brewery in Tempe, dressed as a gentleman.
Carlos Rene Castro

Attendees and volunteers from Valley Dogs Rescue converse while enjoying the company of dogs in Halloween costumes at Pedal Haus Brewery in Tempe.
Carlos Rene Castro

Jack Frost (left), a 2-year-old husky mix, and Walt (right) were among the many dogs available for adoption through Valley Dogs Rescue. The local rescue organization also shared information with the community about their services.
Carlos Rene Castro

Jack Frost plays with his brown teddy bear toy at the Howl-O-Ween Dog Costume Contest.
Carlos Rene Castro

Valerie Johnson, Kelsey Sherwood and Lindsey Blazevich (left to right) from the One Love Pit Bull Foundation shared information about adoption and dog-friendly services with Chandler community members.
Carlos Rene Castro

An attendee pets Walt at the Howl-O-Ween Dog Costume Contest at Pedal Haus Brewery in Tempe, where the patio was filled with dogs showcasing their Halloween costumes.
Carlos Rene Castro