Artificial eggs surround a water-filled glass in the middle of the vase. Complete Instructions: Flower arrangement in glass vase with eggs: Place artificial eggs in the bottom of a tall, wide vase. Place a tall glass in the center of the vase, making sure there is enough room between the two for additional eggs. Insert eggs around the glass until it is fully hidden. Carefully pour water into the glass and arrange a bouquet of white hydrangea, white roses, white tulips, and pink astilbe.