Take a black figure candle, carve the name pf person who is lying and any other info into the figure. Using a hot nail melt away the mouth. Smooth the mouth area over so you can't even tell there was a mouth there, then bind the mouth area with black thread.
Using a knife or nail hollow out a small hole in the area of the heart. Inside the hole sprinkle a little bit of graveyard dirt and (if you wish) a drop of your own blood. Again using the hot nail or hot knife remelt the wax over the hole until the contents are sealed in.
Light the candle for a few seconds as you name; the candle and tell it your wish (i.e. Joe Smith; will stop spreading lies about me) use your own words here.
Take the figure to a graveyard and hang it in a tree with a piece of black thread.