Hiking; Travel; Pet Products; Hardgoods & Equipment; Travel; Brands; Biff the Dog is a Character Based Brand With a Paws Itively Lovable Vibe & is Known for Sporting His Signature Plush Spiked Collar. We Are Thrilled to Introduce Biff's New Spiked! By P.L.A.Y. Line. Now Dogs of All Sizes & Ages Can Unleash Their Inner Biff With This Adorable Array of Spiked Plush Products Including Eco Friendly Beds, Toys & Collars, Animal Collar, Pet Bedding ...