Build Your Own Essential Oil Extractor Distiller so you can distill your own essential oils. Essential oils are very expensive to buy but you can learn how to distill your own and save. If you would like to distill your own essential herbs you will need a distiller and here is a tutorial on how to build your own essential oil distiller. Now you can distill those herbs or flowers that you grow and save a bundle over buying the essential oils. shares the tutorial on Instructables. If you need a book to get you started, Make Your Own Essential Oils from Raw Plants: Using Oils & Herbs for Optimum Health by Amber Richards is a good one to have.