https://imgur.com/gallery/nh8crxA
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blown glassskull cupsalbumimgur
https://www.livescience.com/archaeology/5-000-years-ago-stone-age-people-in-china-crafted-their-ancestors-bones-into-cups-and-masks
Archaeologists in China found a collection of human bones that showed signs of being "worked" like any other natural material.
year oldskeleton masksskull cupsmade