A bud vase filled with water, a wide flower (real or silk), and a small tealight. This looks like spring or country-simple, but you can do whatever flower you want (and tealight) as long as it creates a wide enough base for the candle.
This is what I meant with flowers in mans vase. The perfect wedding centerpiece -- Dollar Store square vases with 9 white roses each. Lauren, this will be gorgeous on those dark wine tablecloths you picked out.