To make a Witch’s Bottle, take a regular jar such as a 6 oz instant-coffee jar. Half fill it with sharp objects such as broken glass, old razor blades, rusty nails and screws, pins, needles, etc. When the jar is half-filled with these objects, urinate in it to fill it. If a woman is preparing her bottle, she might also want to get some menstrual blood into it. Now put the top on the jar and seal it with tape. It should then be buried in the ground, at least twelve inches deep, in an isolated spot where it can remain undisturbed. If you live in a city, then it will be worth a trip out of town to find some remote spot to bury it.
So long as the bottle remains buried and unbroken, it will protect you from any evil directed against you. This applies whether the evil is directed by an individual or a group of people. Not only will it protect you, but it will reflect back that evil on the sender(s). So the more he/she tries to harm you, the more he/she will be harmed her/himself.
Such a bottle should last almost indefinitely, but to be on the safe side, I’d recommend redoing the ritual one a year. With the present rate of housing development you never know when your bottle may be dug up or inadvertently smashed.
from Buckland’s Complete Book of Witchcraft by Raymond Buckland