I cut 12 succulent rosettes. After about 3 minutes of each cutting, they were wired onto stems and ready for arrangement. Materials include cuttings and small, rooted plants (tiny plants that can be plugged in to pots), seashells and bits of tumbled, glass, rocks and sand. Nancy started her succulent mermaid garden many years ago. She chose plants that were unusual in shape or texture and looked like sea creatures or underwater plants. The centerpiece is a white-painted wooden bowl that measures 12 by 8 inches in diameter, and 3 inches deep.