I have to admit, I love crafts and trying out new things.  I saw this years ago when my kids were wee ones and a friend of mine and I decided to give it a try.  And, obviously this won't work in a warm climate, but for those of us who have to deal with the winter snow and cold. 

In my hometown of Iowa, Christmas Eve, was a big time for the luminaries that lined the sidewalks down mainstreet on both sides for blocks at a stretch.  Usually people used paper bags, or milk jugs.  This idea was far more beautiful I thought and captured a lot of attention as people drove by ~

    Simply fill balloons with water (add a few drops of food coloring if you want color), tie them off and freeze in the freezer.  Once frozen remove the balloon and drill a hole in the center and place a candle  in the block of ice.  Depending on how many you make and how dramatic the look you want, you can line your sidewalks/drive or near an entry with these simple beauties. 

Another idea ~ using round jello molds or cake pans, you place berries/greenery in water and freeze them till solid.  Then simply take some fishing line and hang them from tree branches as you would ornaments on outside trees.