This [1] used to be known as "the most expensive hdmi cable in the world" at over $10k. The vendor has since stopped selling it and replaced the picture by one of a usb power adapter, but the reviews are still there for a good laugh. I also recommend the user submitted questions and answers about the product.

And here is the real sad part: the seller only need to sell ONE, even as a joke or for the lulz, for this scam to be worth it.

[1] https://www.amazon.com/AudioQuest-Diamond-2m-Braided-Cable/d...