This is only one way to make candles from molds. Prepare the candle molds first. For each candle, turn a dixie cup upside down and poke a hole through the bottom with the nail.
Thread wick through the hole.
Turn the cup rightside up, and pull thread past the level of the rim. Tie the end around a coffee stirrer. Turn back upside down and pill wick taut. Seal the hole around the wick with putty. Do this for as many candles as you want.