It's pretty much useless, took an astounding amount of time and effort and cost around £920 - but my, is it impressive.
"I make a point of criss-crossing the bands in different spots/directions. It's THAT simple," he writes.
And just in case you're not sure how big it is, he handily provided a MacBook Pro for comparison.
And just in case you're not sure how big a MacBook Pro is, he handily provided two bunches of bananas for caparison.
What a gent.