http://www.potsaa.com/flower-bowl/

How do I get a single silk flower floating in a bowl of water?
I'm the centerpiece of my party. I want to take a vase Circular wide and fill it with water and put a fake / silk flowers in it, floating above the water. My problem is that water absorbing material in the flowers and he sinks a little. Any suggestions on what I can do to make the flower to stay above water?
spraying with scotchgaurd, it should be kept to absorb water (make a model first test to make sure it works)
SIMON LEACH – Finishing a ‘flower’ bowl