You barely get your first whiff of pumpkin spice before the smell of blood and smoke overtake it. “Right now they’re about as low as they’re going to get because it’s almost Halloween,” Rogers said. Overall, though, the majority of dogs dressed up for Halloween will be smaller ones, Rogers said. Pet Supplies Plus carries “overwhelmingly dog” costumes, with just a few for cats, such as a witch hat and a collar, Rogers said.