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.
wedding backdrops with branches, although the branches will arch from either side to make an arch behind the bridal table. Up lighting as shown but also a few fairy lights weaved through the branches for extra depth.