I've been told that variations of this practice are still in use although minus the urine (one spell calls for 3 drops of blood). Perhaps we've gotten squeamish about handling urine in our modern times. They are used to protect you from anyone, witch or otherwise, who might wish you harm. I personally know a Wiccan who has used these spells, always for protection only and NEVER against another person. If you go to magic spells, click on free spells, then on Jar and Bottle spells you will find several variations.