Costumes are a necessity for Halloween--even for doggies. The "Howl-O-Ween Doggie Costume Party," which will take place at the Sail Pavilion, will feature a costume contest for pups of all shapes and sizes. Win prizes for scariest, funniest and most original costume. The Humane Society will be there, too, with irresistible Adorable Adoptables. Sure to be a "howling" good time.