Thank you so much, Chris!! I should have mentioned what I'm using, fragrance oils from Perfumer's Apprentice - no natural oils at all, I have no problem with synthetics. It seems like a good place to start. Because they are oils and I won't have to dissolve crystals would 50% ABV vodka work? I just found out I can get that here. My husband has a buddy who makes homemade grain alcohol which would be high ABV for sure but no one knows the actual amount lol. I'm going to read your blog now!