Introduction: Je Suis Un Espion: Key Mold

Picture of Je Suis Un Espion: Key Mold

Be a super secret, covert spy with simple homemade tools such as this Key Mold. This is a tool for making molds of people's keys while they are still on the ring. "Why would I want a mold of a person's keys?" you’re asking yourself. Well with a mold of a key a copy could be made to allow you to access all sorts of locked... well, locks.

As with all potential unlawful behavior associated with the use of these tools I accept no legal responsibility for your actions or the digestion or use of this information.

This is my first Instructable PLEASE COMMENT and tell me what you think.

Step 1: Gather Your Supplies...

Picture of Gather Your Supplies...

For this project you will need the following:

1. Small hinged tin (Altoids work well)
2. Tin snips (Scissors may work)
3. Clay
4. File (Optional)
5. Keys (from unsuspecting mark)

Step 2: Construction...

Picture of Construction...

Mark the tin lid while closed to make a sufficient cut for a key to be placed into the tin.

Cut a notch in the tin to allow the key to be placed into the tin.

Work the clay into the tin bottom and lid.

Step 3: Use the Key Mold...

Picture of Use the Key Mold...

To use the key mold open lid and press key into clay. Close the lid. Squeeze tin shut. Open lid. Gently lift key out. Close lid and save mold.

Step 4: Thank You...

Picture of Thank You...

This is my first instructable and I would greatly appreciate comments, suggestions, and any words to future ideas. I hope you enjoyed this Instructable. Thank you for reading.



helacaster (author)2013-07-18

Majestic portrait sir

vincent7520 (author)2013-03-26

For card keys one should use a plastic box as the key might be demagnetized by the metal of the box you used. ;D

vincent7520 (author)2013-03-26

For card keys one should use a plastic box as the key might be demagnetized by the metal of the box you used. ;D

springheeledjack (author)2012-04-12

just fill with wax, let harden, place resulting wax key gently into plaster, after plaster sets heat and pour our wax, fill plaster mold with molten metal, high strength epoxy etc, gently break away plaster
you now have a key

cabello (author)2011-10-17

After this, how do you make another copy of the key ? Do you go to a store or can you do it yourself ?

mooner77 (author)2011-09-24

if u melt down metal use bismuth low melting point can be melted on stove.

ItsthePandster (author)2010-11-26

Hey SWV, I like your instructable, but think it could be improved upon by moving the notch to the side a bit more, then making another notch on the other side of the tin diagonal to the first notch. Then both sides of the key could be duplicated, and lined up for filling. It could be possible to have both parts line up well enough that they could be pressed lightly together to ease the filling/cooling process for the duplicate with some thinking.
Then again, one could just fill the impression with whatever metal they've got around, then remember the style/shape of the key they're copying and request their semi-key to be cut using a store's proper blank.

Nice one!

juzzy123 (author)2010-10-26

melt metal and pour it in and you can copy your own key

nerd12 (author)2008-06-19

you can put wax or clay in the clay to make it a key

Evil Bike (author)nerd122008-11-27

that won't work to open the lock, wax breaks, clay disfigures

nerd12 (author)Evil Bike2009-07-11

not plasticine potters clay or m-seal

ranger_steve (author)nerd122009-08-13

or jb weld?

nerd12 (author)ranger_steve2010-03-18

if it stays hard and does not break then ok.
it should also be heat ristance

nerd12 (author)Evil Bike2009-07-11

or you could use the lost wax method. it was used by Indians in the indus valley. they would make a wax model of the desired shape (like a statue) then cover it with earthen clay. when the clay dried and set they would melt the wax and pour it out. then they had a perfect mould. they would then pour molten metal into the mould and leave it to harden. after hardening break the clay mould and you have a statue left.

ReCreate (author)Evil Bike2009-07-07

Perhaps solder?

Evil Bike (author)ReCreate2009-07-08

solder wont be able to mole perfectly to it it beads, not sets

ReCreate (author)Evil Bike2009-07-08


airicknuin (author)2010-02-14

 any comments on ABS plastic? 

junits15 (author)2009-11-14

Je n'suis pas un espion. I dont know much french :)

nobelium106 (author)2009-07-22

to make the key, somebody could pack the mold with baking soda, the put some superglue on it. It quickly hardens to a stone-like material.

mr j124 (author)nobelium1062009-10-17

have you done this before

nobelium106 (author)mr j1242009-10-18

Not to make a key, but for anything else that needs a strong filler, it works great

mr j124 (author)nobelium1062009-10-19

ok ty for info

plowboy07 (author)2008-11-12

what would you use to make the copy to be used

Scythe1157 (author)plowboy072009-07-10

You could buy or obtain a blank key close to the molded one and carve out the teeth yourself.

king of shaws (author)plowboy072008-12-09

Try using solder!

11richie21 (author)king of shaws2009-06-25

solder will just stick to the gun

Evil Bike (author)plowboy072008-11-27

you could use a putty, or something different from the clay

11richie21 (author)2009-06-25

i used cheese once in Vietnam they fed me milk that was unprocessed and stale bread! they locked me up so i had the milk sit there and i stired it with my finger until it turned in cheese. then i made a mold out of the clay under the dirt floor. I just had to keep digging

zac_sraw (author)2009-05-21

what about filling it iwth fimo, taking the mould baking it put more fimo in imprint take it out then bake that?

fire_drakon117 (author)2009-05-12

if you want to add a bit of realism add cardboard and put small washers over it so that when its rattled it sounds like there are mints

shadysideguy (author)2009-05-06


ninelivecat (author)2008-10-02

If you make the mould as in above you could make a copy by melting some lead to get the keyshape but the lead copy would be too soft to be functional unless you could spray something like super glue onto it I was thinking epoxy resin or milliput might wotk too you could make the key out of plastic or fibreglass possibly

you might could electroplate something onto the lead to make it stronger?

electroplating only leaves a layer a couple of microns (100th of a mm) thick, so I don't think plating world make it any stronger

lobo_pal (author)2008-09-10

Why not use homemade salt dough, then you can harden it yourself at home?

zvillesurfer (author)lobo_pal2009-04-13

no salt dough crumbles. i've made it before for school, and if you tried to put pressure or anything on it it would probly just snap. if you ask me, i would melt some colored wax into the mold, then take a high resolution picture of it, print it out, and try to carve that out of something like a soda can.

lobo_pal (author)zvillesurfer2009-04-14

There are many types. I've used some that are pretty strong.

Masteroffencing (author)lobo_pal2008-09-20

isnt salt dough just homemade playdough

lobo_pal (author)Masteroffencing2008-09-20

Yeah, except for the different qualities they have. I know how to make 5 types, but there could be more.

DIY Dave (author)lobo_pal2008-09-12

how do you make salt dough?

lobo_pal (author)DIY Dave2008-09-12

There's several ways to make it, it depends on what qualities you want. Some dry in air, some have to be baked, some have a few ingredients, some have more. What is it that your looking for?

DIY Dave (author)lobo_pal2008-09-20

what do you mean by what qualities?

lobo_pal (author)DIY Dave2008-09-20

Well some are air dry, some are baked, some are different colors. I will make an instructable on them soon, when I do I will reply to this message again.

plzspoilme25 (author)2009-02-27

my car key cost around $100 to have made, and i have to do it at dealership, my car is a 2006 and has no chip on the key it self, only the alarm thingy on the top of the key(yes i know if i unlock the door with the key the alarm will sound) my spare key is bent(who knows how that happened) and i have on occasion locked my key in the car....even with the safety devices included on the car for that to not happen it still can! and now the battery on my spare key is no unlocking it using that(yeah i could get a battery for it but y the key dont work) anyway my point was that the key could be cut from a regular key cut shop, but they wont, because the company that makes my car is looking to make a fast buck or hundred, cause everyone needs im guessing the process would help with that....i hate giving the corporate jug heads any of my cash as they dont need it as badly as i do...they already got the cash for my car....which wont last 10 years i'm sure....sure wish i hadnt gotten rid of my 85 volvo for this 06 headache....not to mention i only paid $500 for the volvo....and still owe 7grand on the 06 crap. so least they can do is NOT charge me $100 for a key that i can make for near nothing and just switch out the button alarm thing....i sure do love instructables....

btw maybe my homemade key wont bend and try to break like the original

ironsmiter (author)2007-11-08

hmm too many directions to answer in threads. "CRAYOLA WetSet Clay has been discontinued for several years. It is unlikely that you'll find inventory of this item." so, we're gonna be looking for a replacement material. If, as suggested, you use the impression as a guide for filing a blank, it should be easy. Silly putty, soft wax, polymer clay, etc. As to the key blank, I've hand fabbed entire keys before.(there was a lock, with a non-standard groove pattern and we had no spare) Careful Dremel work and you're in business. hardened copper, brass, and bronze sheet all work pretty well. "i think that it is doubtful that someone could go to a local key store and ask for a copy of it and not get any strange looks of any sort." Oh, you most certainly WILL get strange looks. and if you don't talk really smooth and quick, possibly a visit from the police! :-) at the very least, you'll get a "no way". If you ere entitled to make a copy of the key in the first place, you'd HAVE the key to be copied!(at least, that's their official stand on it) RE : Field's Metal Hmmm, does seem a bit steep, but should work to make a test copy. an ideal material would be that fun injection wax they use to make the zoo animals with, in the funky old machines. Anything with minimal shrink factor, and a lowish melting temp should also work. There's an old toy, I've seen occasionally, that lets little girls cast their own jewelry, and a version for boys that casts toy car bodies, and toy soldiers. Hobbie/toy stores may even carry the refill kits if you're lucky. RE : 2-part Epoxy interesting... very very interesting. Do some trial runs, and let us know how it goes? :-) I know most epoxy heat cures, but it shouldn't be an issue, and if the shrink factor is minimal... :-) As an added bonus, you could even embed fiberglass, cloth, or some other reinforcement, for a FUNCTION, non-metallic key! Not suggested for "problem locks", as the fracture strength may not be high enough, even reinforced, but would make a GREAT prototype to cut your key blank with, or to open smooth functioning, easily opening locks(Door locks, perhaps, but not tight deadbolts) RE : iKill "poor the molten metal into the mold making a fresh exact copy of the key" This would probably work if you used leather hard pottery clay, and a metal with a melting tempature under 300degreeF.

j626no (author)ironsmiter2009-01-29

a few years back i had thought of this. i was gunna use epoxy to mold the keys, but have a strip of magnesium ribbon running through the key. this way, if somebody saw you, you light the magnesium ribbon and the key melts, no evidence of a key!

Evil Bike (author)ironsmiter2008-11-27

if you used silly putty, it could double as a message taker, since it takes ink off paper... 007 gadget

smujens (author)2009-01-08

for the key copy melt the zinc out of penny and put them in the mold

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