What's the Most Expensive Thing You Can Find on Amazon?

This week, Amazon added (absurdly expensive) commemorative coins to the long list of things you can buy at from its sprawling online bazaar. And while none of us is going to go drop a couple mil on a coin—even with free shipping—it got us to thinking: what's the most expensive item on Amazon?

We started poking around and found such hidden treasures like the aforementioned $3.7 million gold coin, and a $3.8 million dollar "Poly-V belt." But surely that can't be the ceiling. Can you find something even pricier?

Show us the most expensive Amazon thing you can find below. Kindly follow the following format, so that the page is nice and easy to browse for everyone.

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Name

Price

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How you found it/Other notes (Optional)