This is a simple votive favor I made for a baby shower but it could easily be transformed into a wedding reception/shower favor by using buttons in white or in the wedding colors.
Simply glue buttons on the bottom 1/4 of a straight sided votive candle holder. Fill with small gems and place a battery operated candle inside.
Of course, you can use a real candle but most halls, churches and other public spaces won’t allow an open flame. Check with the venue where you are holding the event prior to choosing a real candle.