He does episodes with a Coin Shop when he explores the values of gold, silver, copper, and presumably other things. He has likely hundreds of videos but the ones on silver may appeal to you. Probably will require some digging, but I think that it is fun.
Thank you. I will check him out.
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The ‘ Crazy Russian Hacker’ is a character who samples of sorts of gadgets on YouTube. I find him to be very entertaining. He as well does a wide variety of other ‘tests’ and demonstrations.