You can use different candle holders and candles to create a really nice design on your fireplace mantel. A dark candlestick that is solid has a white or light color candlestick that is shorter next to it. This makes the candlesticks look different and interesting in their design. Make this design better by putting a white candle on a dark candle holder and a dark candle on a white candle holder. You have the option to add more than just two things.