Regarding trust, have you heard of the Rai stones [0] from the island of Yap in Micronesia?
From the wiki article:
The extrinsic (perceived) value of a specific stone is based not only on its size and craftsmanship, but also on its history. If many people—or no one at all—died when the specific stone was transported, or a famous sailor brought it in, the value of the rai stone increases by reason of its anecdotal heft.
From the wiki article:
The extrinsic (perceived) value of a specific stone is based not only on its size and craftsmanship, but also on its history. If many people—or no one at all—died when the specific stone was transported, or a famous sailor brought it in, the value of the rai stone increases by reason of its anecdotal heft.
[0] https://en.wikipedia.org/wiki/Rai_stones