If you think Howloween treats are just for kids, you're barking up the wrong tree. These costumed pups are in it to win it at the annual Dog-O-Ween contest and parade. See them strut their stuff in a four-legged fright fest this Sunday from 4 p.m. until sunset. Need some inspiring costume ideas? Check out past DOG-O-WEEEN photo galleries by Venice Paparazzi here.