Make a cardboard shiv: Another way to recycle an Amazon box

From the Dept. of Making-Knives-Out-of-Oddball-Things, aka kiwami japan, comes the "sharpest Cardboard kitchen knife in the world," one made from an ordinary Amazon box. It chops, it dices, it slices!

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This is how you make a knife from gelatin

We've seen kiwami japan make sharp instruments from such things as dried fish, wood, and aluminum foil. Now, the YouTuber is using green gelatin as the medium to make "the sharpest jello kitchen knife in the world." Because, sure, why not?

(I can't be the only one who was reminded of this early 1990s hit by Green Jell-O, I mean Green Jellÿ.)

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Watch this incredible restoration of an extremely rusty butcher's knife

YouTuber Andre Will Do It found a butcher's knife that was coated in rust, with pitting over 2 millimeters deep on both sides. He almost gave up before eventually restoring it to excellent working condition. Read the rest

How to make a shiv with hard, dried fish

Katsuobushi (aka bonito) is dried, fermented and smoked tuna and it's incredibly hard. It's so hard that it's possible to fashion a shiv out of it.

To do so, you'll need a mandoline, an adjustable wrench, a metal file, a vise to hold it in, an oven, a whetstone and some patience. YouTuber kiwami japan shows the way.

You'll not only get a dangerous weapon out of the deal but also a big bag of bonito flakes (which are great for making your food look like it's moving).

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