This article is from the Wicca FAQ, by email@example.com (Rain of Teleport) with numerous contributions by others.
Some ritual items are common to almost every Wiccan tradition, such
as the athame (ritual knife) and chalice (ritual cup). Others may be used
by some traditions but not others: bells, brooms, candles, cauldrons,
cords, drums, incense, jewelry, special plates, pentacles, scourges,
statues, swords, staves and wands. The meaning of these items, their use
and manufacture will differ among traditions and individuals. Usually a
Wiccan ritual will involve some sort of creation of sacred space (casting
a circle), invocation of divine power, sharing of dance/song/food or wine
and a thankful farewell and ceremonial closing. Rituals may be held at
Wiccan "sabbats" or "esbats" (see below) or to mark life transitions such
as births, coming-of-age, marriages/handfastings, housewarmings, healings,
deaths or other rites of passage.