Making a natural essential oil perfume is an art learned through experience. I'll give you a few basics here and point you to more detailed perfume-making sources and recipes.
Aromatherapy: A Complete Guide to the Healing Art has a detailed chapter on blending perfumes and lists the following required supplies:
Typically, a perfume made with alcohol is about 15 to 30 percent essential oil, 70 to 85 percent alcohol ethyl, and zero to 10 percent distilled water by fluid volume, according to the ACHS Perfumery Manual from the Australasian College of Healthcare Sciences.
However, you can also make perfumes using carrier oils without alcohol or water.
Something you want to take into consideration when blending essential oils perfume recipes is the concept of aromatherapy notes. "Note" refers to the evaporation rate of a fragrance, which depends on its specific weight and energy. The three notes are:
In general, you want to avoid mixing oils that all have the same note, and instead use all three notes, but there are no hard and fast rules.
Here's an aromatherapy perfume recipe from the book mentioned above:
Blend ingredients in a clean bottle. Use as desired.
Solid Balsam Essential Oil Perfume
Other people have done a good job of putting together numerous essential oil perfume recipes. Here's where you can find them:
Making Perfumes and Natural Fragrances at Birch Hill Happenings
Natural Perfume Making with Essential Oils at American College of Healthcare Sciences
Recipes for Perfumes Using Essential Oils at Esoteric Oils
25 Simple Perfume Recipes with Essential Oils by Sharon Falsetto, a professional aromatherapistHome › Essential Oil Uses › Perfume