The pansy has long been the symbol of freethought, originally being used in the literature of the American Secular Union in the late 1800s. The reasoning behind the pansy being the symbol of freethought lies in both the flower's name and appearance. The pansy derives its name from the French word pensée, which means "thought"; it was so named because the flower resembles a human face, and in the month of August it nods forward as if deep in thought.Well, regardless of what you think of the pansy as an adequate symbol, these pins that Ben pointed out to me are gorgeous:
We highly recommend that atheists consider buying one of these real pansy pins. Best of all, it's for a good cause, and (in the true spirit of freethought) you have options as to what that good cause is: your purchase can go towards saving the rainforest, feeding the hungry, providing child health care, preventing breast cancer, or caring for rescued animals. Personally, I'm leaning towards improving child literacy. After all, as The Literacy Site says, "Open books, open minds."
One of the big ways religion tries to promote itself is through charity work. This is a great opportunity for the secular community to show that we're here to help, too. And as a side benefit, we get a little way to display our solidarity.