Also found lots of alcohol free USDA organic flavor oils such as orange and so on made by Frontier Natural Products for 3.95. The only ingredients in the the Orange is: Oragnic Orange oil & Organic Sunflower oil.
I think I've seen some people say that they use essential oils, but they dissolve them in alcohol first. You definitely don't want to use sunflower oil in your atty, and even the essential oils are a no-no according to some people. I plan to try essential oils eventually anyway
Just so ya know.