Harvest rhubarb leaf. Build mound of dirt; cover w/ piece of plastic (dry cleaner/painter's). Mix QUIK-RETE concrete/mortar to a thick but wet consistency. Place leaf face down on the plastic on mound. Cover backside of leaf w/ mortar. If you want the leaf to sit like a platter when complete, make a flat spot in concrete. Let leaf cure for ~a wk. Rinse natural leaf off mortar w/ a power washer or w/ a soft used toothbrush & some water. Let dry. Stain leaf w/~3 coats of concrete stain.
Salvaged Style: An antique pedestal with a concrete top becomes a unique outdoor cocktail table. Outdoor fabric that's durable and weather-resistant dresses up the patio furniture and allows the homeowners to furnish the space similar to an indoor room -- with throw pillows and colorful upholstery.
How to build a cement water feature