How to Make a Reed Diffuser with Essential Oils -- there's even recipes for lots of different essential oil blends. these would be great for bathrooms. Fun for make & take class and gifts!
How to Make Your Own Reed Diffusers And Refill Oils With A Few Simple Ingredients -- 1/4 cup carrier oil (almond, safflower or mineral), 12 drops essential oil for scent, and a splash of vodka or rubbing alcohol.
DIY Reed Diffusers made with essential oils and natural twigs. How to make your own oil diffuser that is non-toxic, safe, and cheap! Also gives instructions on how to dry and peel bark from twigs. By My Darla Clementine