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.
Whether or not an empty wine bottle is transparent, it can make a great bottle light! Mark where you want the holes to be with some masking tape, drill, rinse the bottle, then stuff Christmas lights through the holes you drilled. (via Wit and Whistle)