For your consideration:
Figol
Figol is the god of the Druids. He is usually depicted as a tall bearded man clad and crowned by oak leaves. He is thought to be the manifestation of the power of Nature and as such he is the protector of all wild lands. He grants Druids divine powers to aid in the cause of protection of the land. He is sometimes referred to as the guard of the Cycle or the Balance. He is also often known as the Teacher; it is believed that it was Figol who taught the first Druids the uses of herbs and the ways of the animals. In this guise he is often depicted as an elf. Figol is the particular enemy of undead and aberrations as such creatures fly in the face of the natural cycle of life and death. Although natural disasters such as floods or furious storms are sometimes thought to be signs of Figol’s rage over some wrong that has been done to the land, he is also believed to be in partnership with deities of fertility and agriculture and rewards those that work with the land to raise their crops in harmony with nature.
Some Druid circles do not look to any particular deity but instead revere the earth itself or the Balance.
The Oak Tree
Oak trees are sacred to the Druids. Figol is thought to give guidance through oracular readings of oak branches on particularly majestic trees. The oak leaf and acorn figure prominently in Druidic rituals and groves are often centered around an especially handsome oak. Dryads that inhabit oak trees are thought to be the wisest of their kind and are sought for advice during times of difficulty. Although Druids are often consulted when trees are to be cut (the Druid insures that no trees housing dryads or other spirits are accidentally felled) particular care is taken when an oak is wanted. The general druidic stance is that an oak should not be felled if it is healthy. Oak trees that have fallen by themselves (whether by age, disease, lightning or other natural causes) thus provide a valuable source of wood for druidic tools.
Mistletoe
Mistletoe is also highly valued by Druids if it grows on an oak tree. The most powerful rituals and spells are heightened by the use of mistletoe that has been cut under a full moon with a golden sickle (+2 caster level for spells of 5th level or higher). It must be used before the next full moon or it loses its potency. Mistletoe harvested in this way is also used as an ingredient in a decoction that induces the trance state necessary to carry out oracular readings. In this use, the tree that provided the mistletoe must be the conduit for the divine knowledge. The decoction must be made fresh over a fire fed by windfall from this same tree and must be used within a day. Obviously, such an involved ritual is not often carried out and is reserved for times when the deity’s guidance is very sorely needed.
Fire Festivals
Fire is considered a natural force by Druids and festivals involving large bonfires are celebrated over the year to mark important dates: Beltane (May Day), Midsummer, Hallowe’en, and Midwinter. No trees may be cut for these fires; they must be fed by windfall. The bonfires are usually accompanied by feasting, singing and dancing and are lit on hilltops so that they are closer to the sky, source of the sun and rain which feed the plants and crops.