Elephant ear birdbaths can be decorative accents for your lawn or garden. You can make these distinctive birdbaths by casting the concrete in sand with the elephant ear as the mold. Sand casting concrete is a simple process that anyone can do with the right materials. After the concrete is cured, paint the birdbath with acrylics to highlight the veins in the elephant ear leaf.
Create a 3-inch thick layer of sand large enough to fit the dimensions of the elephant ear leaf, plus 3 inches around the perimeter. Create a 2-inch-high by 3-inch wide pile of sand in the center of the sand layer. The sand pile will form the depression that will hold the water in the elephant leaf bird bath.
Cover the sand with plastic wrap.
Select an elephant ear leaf with no tears or imperfections. Cut the stem so that it extends 1 to 2 inches beyond the edge of the leaf. Place the leaf face down on top of the plastic wrap. The center of the leaf should be over the sand pile.
Mix the concrete topping mix in a bucket according to the package directions. Topping mix is a good choice for making bird baths as it creates a smoother surface than other types of concrete mix.
Spray the top of the elephant ear leaf with non-stick cooking spray. Spread the concrete mix over the elephant ear leaf. Begin by placing a handful of concrete in the center of the leaf, over the sand pile. Spread the concrete mix outward toward the edges of the leaf. Make the center of the leaf between 3/4 and 1 inch thick, tapering off to 1/4 inch thick around the perimeter.
Cut a 2-inch wide section from the tubular concrete form. Place the ring into the concrete at the center of the elephant ear leaf. Spread the concrete around the edges of the ring and up over the sides to create a lip for the base of the bird bath.
Cover the concrete and the concrete ring form with plastic wrap. Allow the concrete to dry for at least 48 hours.
Remove the plastic wrap. Pick up the concrete leaf shape and flip it over. Remove the plastic wrap and the elephant ear leaf from the birdbath. The non-stick cooking spray should help release the leaf from the concrete birdbath, but you may need to scrub some pieces off with a scrub brush.
Flip the birdbath over and peel the concrete ring form from the back. Allow the concrete birdbath to cure for at least one week before painting or filling with water.