The wedding decoration is not meant to distract from the ceremony and should compliment the overall theme. Avoid using decorations that are going to overwhelm the bride and groom in photographs or distract from the attention on the head table.
Candles are an ideal was to add romance and softness to the wedding reception. Consider a grouping of pillar type candles in the center of the table with some silk or dried rose petals scattered on the tablecloth for a truly elegant and simple decoration.