Easy Wedding Centerpieces Ideas. This centerpiece is simple to recreate with a large clear glass cylinder-type vase. River rocks are placed at bottom of vase. A white pillar candle is positioned in the vase, off set to one side. A large hydrangea bloom is nestled next to it. A small amount of greenery is added to the vase for accent, and for a shot of color, one purple rose is placed inside the cylinder. Beautiful and easy wedding centerpieces are a snap. Now you can do this yourself!