Lace Tea Light Candle Holder: Hang a blown up balloon from a string, dip lace doilies in wallpaper glue and wrap on balloon. Once they're dry, pop the balloon and then add the tea light candle . great idea from Spirello: Replay DIY
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.