Green Spelled Don Dinero 7 knob Candle. For ritual work involving wealth, luck, success and gambling. 7 Knob candles are often called wishing candles. They are one of the most famous magickal candles sold. An entire candle can be used for one wish, burning one knob daily for seven days. Start on a Thursday after a new moon. Write your desires on a piece of parchment paper or regular paper and place under the candle before it is lit. The candle can also be used for 7 different wishes by pinning separate papers to each knob and burning daily. As that knob melts away, the wish is consumed and favorable vibrations set up which work towards its fulfillment.