Goofer dust is a traditional hexing powder used in Hoodoo and other folk magic paths. It’s a bit of a last-resort powder used in rituals when a simple banishing isn’t enough. In fact, it’s considered the most dangerous of hexing materials in the realm of witchcraft. Hoodoo traditionalists believe that this powder causes spiritual sickness in a chosen target, and can even be used to cause death through so called “black magic.” Whether or not you believe in all of the spiritual mumbo-jumbo, this is a truly interesting ingredient in traditional witchcraft practices that could indeed come in handy.

Last resort
As stated in the introduction, goofer dust is a last resort powder. It’s used when all other measures prove useless. If you’re simply trying to banish someone from your life, hot foot powder is similar to goofer dust, but it is designed to drive an unwanted person away instead of directly targeting them with malice. I’m not going to lecture you with any nonsense about “threefold” or “karma,” because I  don’t believe in those things. However, if you believe in the superstitions surrounding hoodoo, you’ll want to be careful when using this. It’s not to be used frivolously, and shouldn’t be used by an inexperienced witch. On the other hand, if you want to use this in a hex against someone who has wronged you, then more power to you. That’s what it’s here for. That’s why this powder exists. 
Ingredients
Goofer dust is made of a variety of materials, and each recipe will vary depending on the maker. Most frequently, though, graveyard dirt is the main ingredient. Snakeskin, ground up venomous spiders, and other symbolically “evil” materials make their way into this concoction as well. Sometimes pure graveyard dirt with nothing else added is sold as goofer dust, and that probably works as well, though it’s not entirely legit, since graveyard dirt on its own is an ingredient in other concoctions — and not all of them are used for malice work. Sulfur is another common ingredient found in goofer dust, as is powdered bones or cremated remains. Essentially, anything that is thought to be violent, negative, symbolic of death or toxic can go into a goofer dust recipe — but great care should be taken. There is a fine line between making a physically harmless goofer dust and a physically harmful material that might get you ill, or worse. Use common sense if you’re going to experiment with making this stuff.
How to use it
Goofer dust can be used in a wide variety of ways. It can be sprinkled in areas where your enemy might step, or it can be sprinkled on doorknobs and dressed on hexing candles. Use your imagination! Of course, I should warn — again — that great care should be taken with this stuff. Never, ever try to ingest goofer dust. Never try to get someone else to ingest it. That is not what this material is for, and if you knowingly use it wrongly, you’re on your own!