A heart, the universal symbol of love. This idea was used for our school's annual Gala. To create this adorable B&W photo, children had to lay on the ground, hands in place, faces down. The picture was taken above from a step ladder. The final auction piece was cropped to show mainly the hands and arms (no faces). The more children the more challenging--the center of the heart can look too empty and also getting them all to stay still! With less children, you can use a table top.
