Making sure the wick stands upright and centered, pour the wax into the mold in a slow, steady stream. Don't pour too fast, as the wax will make a dent in the sand. If you are making more then one candle, return the wax to the stove between pours. Let the candle set until completely cool (overnight, if possible), and remove it. Dust off excess sand with a paintbrush, and use scissors to cut off the excess wick and wax at the base.