I made one of these for myself and my two daughters and they love theirs. When the scent starts to wane add a new and different one or a few drops more of the same. It is pleasant to have a favorite scent under your nose all day too! For more information on where to buy high quality therapuetic grade essential oils CLICK HERE. Happy Crafting!
Here is a tutorial with pictures: http://doterrablog.com/diy-aromatherapy-jewelry-for-your-doterra-essential-oils/