The Wieliczka Salt Mine, located in southern Poland near the city of Cracow, has been worked as a source of rock salt since the late 13th century. There are more than 2,000 excavation chambers on nine underground levels. Over the centuries, miners have established a tradition of carving sculptures out of the native rock salt. As a result, the mine contains entire underground churches, altars, bas-reliefs, and dozens of life-size or larger statues. It also houses an underground museum and has a number of special-purpose chambers such as a sanatorium for people suffering from respiratory ailments. The largest of the chapels, the Chapel of the Blessed King, is located 101 m below the surface; it is over 50 m long.
What does your character take the time to carve out of salt?