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.
DIY- Give the decorations at your wedding reception the romantic look of lace. The intricate patterns shining through these luminarias (paper-bag lanterns illuminated by votive candles) are courtesy of doilies glued inside. I LOVE LACE!