i haven't really explored any other materials other then Silver in shapeways. i have looked at iMaterialize's prices and like the fact that they offer HD Stainless Steel but since i only work with silver, Shapeways has the better prices and no customs charges since they are within the us. i wish iMaterialize offerd their HD Stainless Steel at steel prices, unfortunately their HD Stainless Steel prices are closer to what i pay for silver. I've never really looked into bronze tho, at 40% price, definitely worth looking into. Thanks.