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.
Make cute and easy up-cycled DIY mood lighting from old cans! Great craft inspiration for summer parties and BBQs! After poking holes in the cans, paint them to match patio furniture! Mozzie repelling candles make this idea even better: )
DIY Glitter Mason Jar Candles - Take glue and water, and brush the inside of mason jars. Add glitter of your choice to the inside of the jars, and roll/spin the jar around until the glitter coats the sides. Add a tea light after it dries,and voila!
37 Insanely Creative Things To Do With Popped Corks
Floating Flower Tip - Most flowers float pretty well on their own until they start to pool with water and slowly sink. For a longer lasting centerpiece, use bubble wrap to make little skirts for your flowers.