Purple peanut butter Bats for Howl-O-Ween! Only from the home of Howl-O-Ween Salem, Ma. these Bats may look scary with their bright red eyes but they're also delicious and healthy treats for your dog! Hand-made from our all-natural peanut butter dog cookie recipe, we hand decorate all these beauties using our special doggie approved yogurt icing.. Peanut Butter Cookie Ingredients: Rice Flour, Rye Flour, Peanut Butter, Oats, Unsalted Butter, Eggs. Icing is a specially formulated yogurt made just for dogs. Made in the USA. Box includes 4 cookies. Approximate size: 4.50 x 1.50".