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!
Kiwami Japan tried modding a cheap kitchen knife with serrations so it can cut through rock-hard foods like China Marble hard candies, macadamia nuts, and katsuobushi.
Lignum vitae is an extraordinarily dense and hard wood, so kiwami japan wanted to see if a knife made of the wood could maintain a sharp blade. An interesting and relaxing experiment.
Kiwami Japan is the MacGyver of knife making. He's made knives out of the darndest things — cardboard, gelatin… fish. But he's really outdone himself this time. He's crafted one out of men's boxers. Yes, a knife made from underwear. — Read the rest
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? — Read the rest
kiwami japan (previously at Boing Boing) shows us how to turn a pack of kitchen foil into a ready-to-chop kitchen knife. See also the pasta kitchen knife and the chocolate kitchen knife.
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. — Read the rest
