Unity candles for wedding ceremonies are popular for this ... to their places for the ceremony. Those candles stayed lit through out the ceremony, like old-fashioned footlights.

I am getting married in October and we have decided to have a wine ceremony in place of the unity candle ceremony ... I’m not sure how practical this is in a wedding ceremony, unless you want to pull ...

selling stuff to people who plan and perform them -- and the true origin of the unity candle is still very, very fuzzy. It is not part of any religion's formal and official wedding ceremony.