Another method of wax divination is to watch the way it drips down the candle: ask a question, if it drips mostly down the right the answer is yes, if left no, and if both then no answer is possible.
Wax isn't the only way to divine with candles. There's also the less messy method of meditating on the flame, or its reflection. If you decide to give candle divination a try, make sure to do so safely.