Candles are used in ritual magick or to purify the area. Here are some colors and what they do.

WHITE--Centering

PINK--Love

GREEN--Prosperity/Money

YELLOW--Overcome Depression

BROWN--Return to Sender

Amulets are used to protect yourself, for luck etc. Here are some examples.

BLACK CAT--Protection from evil

EYE OF HORUS--Strength and Wisdom, Spiritule guidance, protection and insight.

A ritual knife with a black handle and a double-edged blade which is traditionally engraved or etched with various magickal and/or astrological
symbols.

It represents the ancient and mystical element of air, is symbolic of
the Life Force, and is used by Witches to draw circles, to exorcise evil and
negative forces, to control and banish elemental spirits, and to store and
direct energy during magickal rituals.

An athame with a white handle is used only for cutting wands, harvesting herbs
for magick or healing,
carving runes and other magickal or astrological symbols on candles and
talismans.