I've always been fascinated by how Wiccan and fae traditions borrow from each other, though they're distinct paths. A key crossover symbol has to be the pentacle - not the inverted one from horror movies, but the five-pointed star within a circle. It represents the elements and spirit, and in some fae-adjacent practices, it's seen as a ward or a way to honor the natural world both traditions cherish. The triple moon symbol for the Goddess is huge too; it connects to lunar cycles, which are vital in both Wiccan ritual and many tales of fae activity being heightened under certain moons.
Then you've got more nature-focused items. The cauldron pops up a lot, not just as a witch's tool but in Celtic myths as a source of regeneration and magic, which ties right into fae lore about endless feasts and transformation. Wands and athames (ritual knives) are used to direct energy, and I've read accounts from practitioners who feel these tools help commune with land spirits and the Good Folk, almost like a respectful invitation or a focusing aid. It's less about commanding and more about aligning.
Plants are living symbols themselves. Hawthorn trees are considered sacred and often seen as gateways or fae dwellings; disturbing one is a big no-no in many circles. Rowan is used for protection, and I know some who wear a sprig of it when walking in old woods. The imagery is everywhere once you look - the spiral for journey and growth, the green man as a face of wild, untamed nature that could be fae or god, and simple things like leaving offerings of milk or honey, which is a symbolic act that bridges both a Wiccan practice of gratitude and an old folk method of dealing with the fae.