Diy Dog Cologne . Spray bottle, add warm water to fill it up, shake and you’re good to go. Diy cardboard cone collar, from pet diys. Dog Perfume DIY Safe and Effective Scents for Your Pup from chihuacorner.com Diy cardboard cone collar, from pet diys. Clean the butter tub, cut out the bottom, and slip it on. There are two main components to fun diy dog pen ideas: