Paper lanterns as light-up centerpieces--inexpensive idea. Slip a Vase in the middle of each lantern and add flowers of choice. OR just adhere silk flowers to top edge of lantern.Put BATTERY OPERATED CANDLES/lighting inside and around each lantern.
rustic - enchanted forest wedding reception table centerpieces -- log slices, carved initials, moss, candle, twine with dried flowers. Nicole super simple and don't have to pay for flower centerpieces!
Candle table centerpiece (inspiration only) Glue fake flowers to the bottom of a tall vase (or to stones you could drop in), fill with water, and top with a floating candle. This is a really cute idea for center pieces!