Green candles are awesome for money. When you're connecting to the abundance of a currency, it's best to think of it as an energy rather than a tangible because everything starts in energy as it is. Best to light it with the set intentions, spell work, or ritual. They're great for use on altars, in rituals and ceremonies, and breaking spells. You can oil the candle with an aromatic oil, then speak your intention directly into it and light the candle. Let it burn all the way through, do not leave unattended.