This spell is to help dispel negative energies around you and involves making a talisman.
Take a small clear crystal, an acorn, some rosemary and mandrake and
a bit of green silk or cotton. It doesn’t need to be a big piece.
Cast your circle and creating a pouch from the herbs, bless them with
each element saying
“While this dwells within, there will be protection without. Cleanse
and charge this charm, element of against all who wish me ill!”
Now hang this somewhere not too obviously, like hiding it in a corner
or over a window. This will protect you till next Samhain when you
should burn it in the sacred fire, crystal and all. If it is not too
tainted, the fire will just cleanse the crystal and you’ll be able to
retrieve it from the ashes but I always recommend just getting a new
one. ~source unknown~