3 ms·Lost-wax casting?by JKCalhoun 1y agoLost-wax casting?AngryData 1y agoThat is what I would assume as well since these are cast items. That said, if this was a "skills test" of sort, it would be possible but exceedingly difficult to cast using hard molds and sand.JKCalhoun 1y agoThe inside looks like the hard part.