Lemon candles! They can be used on your altar to promote peace, happiness, energy, clarity, and warmth! Once they are used up, you can remove the wicks and put them outside, as they will decompose naturally into the soil and nourish it.
To make them, simply cut a lemon in half and use a spoon to hollow it out. Afterwards, melt some organic soy wax in a bowl and pour it into the lemon peels. Once the wax is about half way hardened, press a wick into it. Let them sit, and then use them as you will! You can add some lemon essential oil into the wax, too, for an extra powerful scent.