Pavers aren't made of clay alone. Wausau Tile combines concrete and recycled glass (25 percent by volume) to produce them in sizes ranging from 12 inches to 36 inches square. The company also recently introduced a hexagon-shaped design. The pavers can be speced in more than a dozen iridescent colors with a shot-blasted or washed surface. Wausau Tile, 800.388.8728;