Stepping stones come in various designs and are made of every conceivable material suitable for the outdoors - including concrete, stone, slate, bronze and even glass. Stepping stones painted with pictures and themes and carved into many shapes can add personal flare and unique charm to your walkway. It's also popular to incorporate stepping stone designs into table tops for your patio table. If your stepping stone path is heavily tread, it's wise to choose a material that is heavy and durable - such as stone - to ensure the longevity of the walkway and the safety of the people walking on it. Stepping stones come priced individually or in sets, depending on the retailer. Well-crafted and painted stepping stones can be found online starting at about $15 apiece.