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.
We just stumbled upon some photos from a wedding show case held a few years ago with Madeline's Wedding & Events. Its been almost 5 years but the elegant designs are timeless! Photographs by Brucki Studio.