Over on Hackaday.io, [bms.had] is showing his technique for 3D printing molds that he uses to cast (lead-free) pewter objects. The process looks simple enough, and if you have a 3D printer ...

As it ages and is handled, however, it will develop a dark patina. Whether pewter is toxic depends on how old an item is. Lead was removed from pewter’s composition in 1974; most modern pewter ...