I have also seen similar centerpieces that use epsom salts instead of sugar. You could also sprinkle a mix of pearls/gems. Sand (or sugar), faux pearls, a 3 candle. An easy DIY wedding centerpiece idea.
To go with Gatsby style maids dresses. Navy and purple Great Gatsby inspired wedding day.
Sara Elizabeth Cakes & Sweets: Great Gatsby Cake & Wedding Shoot: Plus a Fondant Sugar Brooch Tutorial. Green, Gold, and White Wedding Cake, as featured on LeMagnifiqueblog.com www.facebook.com/saraelizabethcakesandsweets