Find a cup or jar large enough to hold the flower. 1, Pour boiling water into the cup. 2, Stir in borax until it stops dissolving. 3, Add food coloring, if desired. 4, Place the flower in the cup. You can tie a string to the stem of the flower and hang it in the cup from a pencil if you are concerned about crystals sticking the flower to the cup, but it isn't usually a big deal. 5, Let the crystals grow for a few hours to overnight, depending on how thick you want the crystals to be. 6, Remove t