Introduction: Throwing Star of David

Oy vay! Ever wondered what to do with all of your old box knife blades? Well, instead of throwing them in the garbage can, you can throw them AT the garbage can. This not-so-kosher project consists of welding six blades together to make the fiercest throwing star you have ever seen.

I can go over the cautionary details but I assume that it is implied that any time you handle razor blades there is a certain risk factor. So have fun. If you get cut you probably weren't exercising enough caution. Not recommended for use by mohels during a bris.

Step 1: Arrange the First Layer of Blades.

If you will be welding them then find a piece of sheet metal to lay them on. Match up the corners to the best of your ability.

Step 2: Lay Next Layer of Blades Atop the First.

This is tricky because the blades like to slide around on you. You can use Scotch tape to pin down the corners but remember that if you are welding the heat will melt the tape, which is perfectly OK. It would just be necessary to clean off the sticky goo with some laquer thinner, gasoline, or any other solvent, but wait until it has been quenched or cooled.

Step 3: Clamp Your Ground to the Metal Plate.

The blades are grounded by the metal plate which is nice for small stuff like this.

Step 4: Tack the The Corners.

This will connect the whole star together.

Step 5: Tack the Other Side.

This is necessary because the star is too flimsy if you skip this step. Instead of making a nice solid thud sound when it hits the target it sounds clanky as if you were to hurl the entire contents of your silverware drawer at the wall.

Step 6: Brush Off Oxidization.

These blades rust, so before you paint or laquer it's good to brush off any crud that may have accumulated on the star during welding. I lock the star into the vice grips and brush the heck out of it.

Step 7: Time to Paint.

Before you paint it's a good idea to clean any residual oil off the blades. Any solvent will do the job. Laquer thinner or denatured alcohol dry the fastest, almost instantaneously. My paint colors of choice are flat black, aluminum, or clear laquer(provided that my welds turned out nice and are worth showing off).

I usually bend a length of wire into a hook and hang the star from it so I can spray all sides at once and hang them to dry under a halogen lamp.

Step 8: Get Throwing.

I was once told as a boy that the best way to hold a throwing star is to grip it between your index and middle fingers. I do not suggest that. With these stars it has proven extremely innacurate and terribly uncomfortable. I can only recommend that you experiment with different throwing methods and discern which is the best for you.

Comments

author
bjackson24 made it! (author)2014-12-02

instead of welding i used an industrial soldering iron and it worked perfectly for me

thanks a lot

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Ignorant_train made it! (author)2014-07-29

what about using super glue for non-forging, non-welding people?

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ajjay made it! (author)2013-11-09

Ya what is it, I think it's like making it hot and hammering it or something? I don't know. Tell us

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Ryan7 made it! (author)2012-01-02

What do you mean by "tack the sides"? How did you do that?

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lemonhead47 made it! (author)2008-12-06

Ninja stars are lame. and dagerous cuz a complete and total idiot can use them. now knife throwing, there is something that needs skill........

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CamillaLuvzMusic made it! (author)CamillaLuvzMusic2010-10-24

You need skill for ninja stars because seriously have you ever picked one up and chucked it at a tree 20 yards away and actually hit it? Not saying that I have, the ones I make are of paper.....

https://www.instructables.com/id/Magic-Ninja-Stars/
and theyre epic!!

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ninja of suburbia made it! (author)ninja of suburbia2011-02-18

Correct. I own both shuriken and throwing knives, and although I cant though a knife worth crap, a shuriken does take a rather high level of skill. you would be amazed how many people cannot throw anything but a ball with any accuracy.

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heavyfire88 made it! (author)heavyfire882011-12-03

You noobies.
Go try throwing a tomahawk

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ninja of suburbia made it! (author)ninja of suburbia2011-12-03

are you saying this because you enjoy throwing axes in real life? I admit, that takes slightly more skill than throwing even a knife, but is impractical. one option, you carry several tomahawks and weight yourself down, or the other option, you throw your weapon, and then you are screwed. or are you referring to tomahawks in *scoff* video games?

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lowekeykid made it! (author)2010-07-15

how do you carry them without slicing your gut open......... very carefully XD

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josefu0 made it! (author)2010-04-18

 Oh my Jewish God. Jews will evolve from money horders to ninjas. It's a compliment to all jews. i love you jesus .

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rocksalt2342 made it! (author)2010-04-15

JUST so everybody knows, he used the oxy-acetylene mode. (aka fire)

By the by, ninjas leap from trees, somersault on concrete, and kick from 15 feet away. With that in mind, it really doesn't seem very intelligent to have razor sharp weapons pointing towards your pancreas at these times. But suit yourself.

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skimmo made it! (author)2010-03-14

how do you carry them without them slicing your gut open?

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skimmo made it! (author)2010-03-14

dude! thats so brutal it makes me skin crawl

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J@50n made it! (author)2009-08-23

I have an instructable along the lines of this too! it has 8 points though. to check it out, click da link!

https://www.instructables.com/id/How-to-make-a-throwing-star-video/

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muffin1 made it! (author)2009-04-24

Awesome... Jewish ninjas!

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Replicator made it! (author)2009-03-12

Depends where you come from, The english and american spelling is different....

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geeklord made it! (author)2008-09-15

Is welding hard? I mean, my friend(who's not that, wait, HORRIBLY unbright) can do it.......

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Thelonelysandwitch made it! (author)Thelonelysandwitch2008-09-16

just use some jb weld

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geeklord made it! (author)geeklord2008-09-16

I never heard of that b4 thx

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corey_caffeine made it! (author)corey_caffeine2009-01-30

i used DURO brand superglue

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corey_caffeine made it! (author)corey_caffeine2009-01-30

just remember a little goes a long way and the blades come oiled

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geeklord made it! (author)geeklord2009-02-03

alright

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Kaiven made it! (author)Kaiven2008-10-17

good idea!

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corey_caffeine made it! (author)2009-01-30

one tip.. use 9 blades and make a sandwich with 3 triangles with the outside triangles lining up

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corey_caffeine made it! (author)corey_caffeine2009-01-30

edit: it adds weight

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DOMINO made it! (author)2006-07-25

JUST BECAUSE YOU CAN THINK OF SOMETHING INSANE DOESNT MEAN THAT YOU HAVE TO MAKE IT....AND MORE SO, THAT YOU WOULD GIVE INSTRUCTIONS TO ALLOW SOME OTHER CRAZY PERSON MAKE SOMETHING SO DANGEROUS.

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gamerguy314 made it! (author)gamerguy3142008-06-15

if you don't like it then don't make it duh -.- oh and another thing, turn the capslock off

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Loveofchaos made it! (author)Loveofchaos2008-01-10

dude, this is no more dangerous than a regular regular throwing star, my hope is, that those that can afford a welder,w ould have the sense not to use it to pick their teeth.... besides.... its not hard to think up insane stuff haha.... i made this... im 14, and i didnt cut myself once. its an awesome star.... just dont lose it in the lawn..... as my dad said... "sweet! you just made a new lawnmower killer"

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Beschaulicheit made it! (author)2008-06-07

Very fun, very funny. Thanks for a lovely instructable, especially one that goes well with the influx of homemade welders on this site.

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pandaboy292 made it! (author)2008-03-03

i wonder what it would do if u used hook blades.

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james_vaughnn07 made it! (author)2006-10-09

love these threads... oohh... ninjas rock!!! a few comments, though: even if you weld the edges together, after, say, bout a dozen throws or more it'll break like shit in mid-air and you'll end up flinging multiple blades everywhere. hehe just kiddin still, if you could, the best way to make shuriken (shaken)- aside from FORGING one, of course- would be to cut the basic star/cross/hexagon shape from a thin sheet of metal then running it through a benchgrinder (or other grinders) to sharpen em. i use sheets of stainless steel (ooohhh, multiple S's) for mine- the ones we use here in the Philippines to plate jeepneys and tricycles. i stole a couple of 'em form my dad's workshop (thanks Pop! hehe), got a pair of metal cutters, then got busy. after that i used a bench grinder to sharpen the edges (not too sharp though, even if you're gonna throw em through wood, coz the weight of the shuriken- especially if the metal's quite dense- will make up for it and drive that baby home... plus, if it's too sharp, you'll just end up cutting yer hands). i find the metal sheets to be quite resilient- even if they bend a bit after you throw em, just hammer them between some plywood and you're all set. i throw my shaken using three different throwing styles- one, the common frisbee throw you see in movies. this is good for short-range throws, since it ain't too powerful a throw, and you really can't control the direction of yer shuriken using this style. well that's just me. two, the overhand throw where it basically cuts down like a knife throw- and you pinch one of the shaken's "arms" between your thumb and index fingers then cut down as though you were doing some downward katana stroke. this throw is really accurate (for me), and due to some aerodynamic theory (that i don't really understand), more powerful than the frisbee throw. three, i don't know what it's called but it basically looks like the frisbee throw, only that instead of flicking your hand forward, you hold it using the overhand grip and throw it like a baseball. my buddy taught me this throw and it actually works quite well over long distances (though the accuracy's a bit questionable). so there... im still 18 and am trying to improve my ninja skills... hahaha.. imma try posting an instructable here soon...

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bowmaster made it! (author)bowmaster2008-01-13

You said "(not too sharp though, even if you're gonna throw em through wood, coz the weight of the shuriken- especially if the metal's quite dense- will make up for it and drive that baby home... plus, if it's too sharp, you'll just end up cutting yer hands)" dude they must be as sharp as you can get them!!!

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GorillazMiko made it! (author)2007-12-05

wow, cool instructable!

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EvilZombi made it! (author)2007-04-03

Haha Shark.

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masterochicken made it! (author)masterochicken2007-10-04

jesus shark

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chevyracer made it! (author)2007-07-12

if you dotn have a welder just use jb weld.. and the only way you can cut yourself is if your a retard

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Ninjitsu student made it! (author)2007-07-12

I use to make throwing stars (as a 12 year old)using the bottom of a coca-cole can. Works nice at short range. (If you are afraid of getting cut with the "current model" in question, rather use a coke can..)

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Loveofchaos made it! (author)2007-07-07

it is possible not to cut your hands, just grip it by the sides, not the points

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Class_Clown made it! (author)2006-10-23

? whats a tyre

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claw1892 made it! (author)claw18922007-06-14

tire

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chemy999 made it! (author)2007-06-10

it will always cut your hands or gloves every point and edge is freaking sharp

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ginja_ninja made it! (author)2007-05-31

that will kill u no matter wat that 1 sharp bitch

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Choose a Username made it! (author)2007-05-08

of course if you bend down with them in your belt, you'll be a real bloody ninja

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Shuriken Specialist made it! (author)2007-04-15

all i did to be simple was take two of those razors and tapethem together in a cross shape. it works! you can tape it or weld it. either works fine. welding will make it faster though.

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inevitable_chaos made it! (author)2007-01-29

That looks awesome!

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Rednek Electrition made it! (author)2006-10-24

Fake_Name they are talking about the blade points because theres that section missing. so it gives it twelve points

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steel$ made it! (author)steel$2006-12-23

what about the people who dont have a welder ??? \

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funnynakedpeople made it! (author)2006-09-05

cool but dangous to the thrower beause no hold place

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paper warrior made it! (author)paper warrior2006-09-10

wear gloves

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