Looking for a place to start your seeds? How about in 2-liter plastic bottles? To keep the roots from being exposed to direct sunlight use colored bottles. Measure up 6-inches from the bottom of a 2-liter bottle and make a mark.
Take an old angel food cake pan and cut it about an inch from the top of the center tube and rolled edges. Slip the umbrella pole of your patio table through the angel food cake pan. The container can then be filled with fresh plants.