Right, we've all completely overlooked the true purpose of tin foil.

It turns out it's not something to wrap your sandwiches in and then chuck away: the people of Japan have discovered that it's actually art (with a little bit of work, anyway).

Thanks to a Japanese jeweller, seemingly the entirety of Japan is now obsessed with polishing tin foil to perfection. Here's how.

Step one: Get tin foil. Scrunch it into a ball. So far, so good. 

Step two: Use a hammer to push into a tighter ball. Repeatedly. If you think you're done, you're probably not.

Step three: Polish painstakingly to perfection. 

Step four: Marvel at what you've created.