chalice

The chalice is a cup with a long stem that will be filled with various liquids during spellcasting and rituals. Often, it simply contains water, representing this element, which could be always present on your altar. It can also be used for pouring wine during Sabbat offerings and ritual toasts, or even blood and other liquids depending on the spell you are casting. You could also use a chalice to mix water and salt for tracing your protective circle and also for blessings and purifications.