Originally published at: https://boingboing.net/2018/04/03/how-to-make-a-shiny-ball-out-o.html
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Note, this process does NOT start with three minutes in the microwave at full power!
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He is, however, safe from the orbital mind-control lasers 
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Oh, I thought it was going to be this:
Microwaved this foil ball for 3 minutes and this was the result
(I see @davide405 already got there.)
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it does look cool, but when you’re done… THEN what? just look at it? start on a second one?
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I threw mine at the moon.
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You move on from aluminium to beryllium and make your own atomic clock.
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It’s all about the journey, man.
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You make enough to play boules at the village court,or fire them from your cannon. 
As I watched the video I thought of a bunch of ways to speed up the process using old school metalworking hand tools - but purists might think it was cheating. Being in Japan, I was thinking you could use some kind of non-foil nucleus, like the mother of pearl beads at the center of cultured pearls. Maybe a golf ball.
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So this looks like fun. Is very finely ground aluminum a safe substance to have, like, sprinkled over your kitchen counters?
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Flatten it out and make a knife, obviously 
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Aluminum dust is a very serious explosion hazard. Be careful.
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No no … you make a [woo]katana[/woo]
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No no no no NO!
Petanque is a serious sport, and you can’t use non-standard boules for it. Aside, aluminium is probably the fourth shittiest metal to use for a boule.
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I’ve always been taken by the idea of working on dorodango, but I’ve been put off by being lazy, impatient and a monumental klutz. This metal version seems even cooler, but no more likely for me to actually do…
Also, that guy sure has a lot of grills in his back garden.
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I’ll leave sandpapering and polishing beryllium to somebody else. Ideally a robot in a sealed compartment with copious dust controls and excellent filtration.
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Ach, you’re no fun anymore.
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