I saw this set of videos posted by Hoodoo & Conjure Quarterly and found it interesting. Thought I would share and elaborate just a tad for the curious.
The recipe for "conjure clay" is pretty much your basic recipe for homemade clay that you used as a kid:
1 Cup Salt; 1 Cup Flour; 1/2 cup sugar, Food coloring optional; 1/2 Cup Water
Stir salt and flour together in a medium bowl. Add food coloring to water to achieve desired color. Pour water into salt and flour mixture and knead until mixture is doughy, adding more flour or water as necessary. Store in airtight container. Objects made with this clay will air dry in about 48 hours.
The ingredients mixed into the clay vary according to the preference of the worker. You will want to include spanish moss as it is used in poppets meant to represent another human being. Also because of is twisted and gnarled like appearance it is excellent for hexing/crossing. The rest of the ingredients can be any combination of crossing materials i.e. goofer dust, dirt dauber nest, sulphur, black pepper, etc. The number of ingredients that you use should be an odd number.
The anointing oil used on the candle should be black arts or crossing. Make sure you take a spiritual bath after doing this kind of work. It should go without saying, but this kind of conjure is serious and should be taken lightly. Cast responsibly!