Stirling engine powered power bank - GIF

Stirling engine powered power bank.

<video controls autoplay loop>
<source src="https://diqn32j8nouaz.cloudfront.net/tooltalk_17180603078584.mp4" type="video/mp4">
Your browser does not support the video tag.
</video>


Previously:

16-cylinder gas-powered Stirling engine - video
1979 NASA Stirling-powered AMC Spirit - photo
Antique Stirling engine fan - GIF
Crude V-block Stirling engine - GIF
Four-cylinder Stirling engine - GIF
The Stirling Engine: A Wave of the Future - video

This seems like a great idea for the coming times to keep a cell phone charged.
Any plans available on this entire build?

A search led to several types. One was the same as the one here on screwtube. It must be for sale somewhere.