I really love the look of various metal finishes and other textures all together in one space! (theinspiredroom.net)
You can personalize the necklace by mixing and matching charms in various metals to capture your recipient's personality. (bedknobsandbaubles.com)
They aren't exactly wearable, lacking comfort (they weigh 15 pounds) and likely also lacking safety from various metals and materials you wouldn't want next to your skin. (treehugger.com)