Transform any smooth stone with imitation gold leaf. Arrange clusters of them around the table as a centerpiece alternative.
Apply water-based sizing (glue for gilding) with a foam brush to a stone. Let dry until clear, about 20 minutes. Wearing cotton gloves, drape a gold leaf sheet over stone, and smooth with fingertips. Burnish with a soft-bristle brush. Continue until stone is covered. Let dry 24 hours.
Imitation gold leaf, $10 for a 5 1/2" square booklet, nycentralart.com.