The altar should be arranged as usual, plus 2 white candles, incense of a flower scent, and a willow wand. Dress is up to the couple.
Celtic tradition is that the bride where's some kind of veil or netting and an article of scarlet.
The couple should bring wedding rings and small symbolic gifts for each other if desired. After lighting the candles and incense, the priest and priestess face the gathering, backs toward the altar. May the place of this rite be consecrated for the Gods. For we gather here in a ritual of love With two who would be wedded. They couple comes forward and stands before the Priest and Priestess, groom in front of Priestess, bride in front of Priest.