August often starts out hot and muggy, but even when the rest of your garden is wilting in the heat, chances are good that your onion crop is thriving in the cool, dark soil. If you haven't pulled them yet, Lammas is a good time to do so. Once you've got them out of the earth, gently brush the loose dirt off of them, and hang them in a sunny spot to dry and cure. When August's full moon, the Corn Moon, rolls around, get to work on some onion magic!
Under the light of the full moon, you can make an onion braid. Braiding is a very relaxing and magical way to spend an evening, and by braiding your onions, you can prepare them for winter storage -- basically, you're accomplishing the magical and the mundane all in one shot. To do this, you'll need a bunch of onions with the green tops still attached, and about four feet of heavy twine. Begin folding the twine in half, and tying a knot near the end, creating a loop.
Lay the twine on a flat surface and place an onion upside down so that the greens of the onion form a third "string", along with the two free ends of the twine. Using the two free lengths of twine and the onion stem, form a tight braid. Repeat this until the onion is securely in place.
Repeat the process with the rest of your onions, braiding them in and out between the other stems and the two strands of twine. As you do so, focus your intent. Onions are magically linked to protective magic, so you can braid the onions and recite an incantation linking them to whatever sort of protection you feel you need. Some sample incantations might be:
For protection of a home:
Onions wrapped around a braid,
This charm for my home I have made,
Keep negative energy away from me,
As I will, so it shall be.
For protection of a person:
Layers and layers of onion skin,
Layers of safety for those within,
Layers to make all harm stay out,
Keep (name) safe, without a doubt.