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.
Create a Christmas ornament from wedding keepsakes: a few petals from your bouquet, a cork from the wine served at your wedding, and top it off with a gorgeous colored ribbon! You can even write the date of your wedding on the glass ornament.