Natural and durable, a stash of used bricks provides a wonderful contrast to elegant succulent plants. Created by Christopher and Kelly Harris, the display looks great alone or paired with a votive and becomes a star centerpiece in any living space--indoors or out. Full Instructions at ReadyMade. Or Skip the elbow grease and order bricks via Succulent Love Designs.
Use blocks of reclaimed wood instead of bricks (but be careful with your candles and perhaps consider going with LED tea lights).
Try another low-maintenance and slow-growing plant, such as a cactus.