A low centerpiece, featuring cut blossoms floating in water, is an elegant choice, and has the advantage of not obstructing the sight lines of those at the table. Gerbera daisy blossoms are perfect because of their durability--they can float in water for many hours without wilting. Choose flowers in a single color, or combine two contrasting colors.
Floating centerpieces can be designed a number of ways. One easy solution is to buy small, clear, square glass containers just large enough to hold a single blossom. Fill the containers with water and float a blossom in each. For a romantic effect, place votive candles in half the containers, and flowers in the rest. Create a display alternating candles with flowers. If your table is round, arrange the blossoms in a circle at the center of the table. For a square table, arrange the containers into a grid. If your table is oblong, run a line of blossoms down the center of the table.
Larger glass vessels will also work for floating centerpieces. Any clear glass container will do--a punch bowl or a even a fish bowl. For larger containers, fill the lower section with something colorful, to match or compliment the color of your flowers. You could use glass marbles, colored stones, shells, raw cranberries or even jelly beans. Add water and float your blossoms on top. For a candlelit effect, wrap clear glass votive holders with colored paper, to match your flowers. Fill the holders with candles and place them around the glass container with the floating Gerbera blossoms.
Full stems of Gerbera daisies look beautiful displayed in tall containers. If you happen to have some tall, glass bud vases, use these to create a row of flowers, with one or two stems per vase.
Another solution is to cover used cans of potato chips or tennis balls in decorative paper to match the flowers. Fill the cans with water and cut the stems just enough so that the blossom peeks over the top. If you only have short cans, don't worry--simply cut your stems shorter. Your display will look more professional if the container sizes are uniform. Choose containers of all one height or a couple of different heights.