Place a layer of floral marbles in the bottom of a large glass bowl. These can be found at craft stores and come in many colors. Use colorful ones to add something extra, or clear ones to add texture to the centerpiece.
Fill the glass bowl roughly three-fourths of the way with water.
Trim the gerber daisies with scissors. Leave about an inch of the stem intact to help weigh the daisies down a little bit in the bowl.
Float three to five daisies in each bowl, depending on how large the bowl is and the flowers are. The daisies shouldn't be overcrowded.
Add several tea light candles to the floating arrangement.