Whenever possible make your own candles. While the wax is in a liquid form, add a corresponding oil, herbs, or flower petals. For example, if you are doing a money spell you could add Heliotrope oil and mint leaves.
When dressing the candle, close your eyes, concentrate, and visualize what the candle represents. See in your mind’s eye the manifestation of your desire.
Always keep in mind, and allow for, the burning time of the candle when scripting a spell or ritual.
When creating your own spells, always use the proper phase of the moon and planetary symbolism. This will align the spell with the natural flow of energy produced by the moon and corresponding planet, giving the spell more power.