DIY sequin flower vase :) All you have to do to is sprinkle some sequins into the bottom of the vase before you fill it with water. And after you arrange the flowers, the stems will disperse the sequins to give your vase just the right amount of glitz
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.
Outdoor lighting idea from Martha Stewart -gather clear apothecary bottles and fill them with lamp oil and wicks. Arrange the bottles under a large glass hurricane jar for protection and place on a sturdy glass cake stand.
you can get the vases at Dollar Tree, 3 bags of rocks and the floating candles in a 6 pack at Hob Lob. With a super gorgeous orchid as the flower, in the colors of the wedding, you've got yourself a very pretty, and very thrifty centerpiece!