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.
with this cute bridesmaid gift idea. Or any cute bridesmaid gift idea for that matter! Fill each box with goodies like mini prosecco or a wedding morning silk robe and tie on a helium balloon. Adorable in an instant, and not too pricey!