Replicating body parts in plaster

This is the first part of a two-part series on making a silicone replica of a body part. However, before we can make the silicone replica, we'll have to make a plaster replica.

*** WARNING: Because of the body part chosen for casting (in this case, a woman's breast), this Instructable may contain material considered offensive or objectionable to some readers. Viewer discretion is advised. ***

Step 1: Gather your materials

To do this step you will need the following:

1) Dermagel - at least 2 pounds (or equivalent dental alginate)
2) Plaster - at least 2 pounds
3) Plastic container for placing body part inside of
4) 2 plastic mixing bowls - preferably with measuring lines (might get ruined)
5) Plastic cups for pouring materials
6) Duct tape
7) Metal whisk
8) Wooden mixing stick
9) Gram scale
10) Box cutter
11) Flathead screwdriver
12) An old towel
13) An assistant (optional, but highly recommended)

Comments

[fxguy2000]

if you want to reduce the amount of alginate you use you can always use plaster bandages for backing and to reduce bubbles try not to whip the alginate before applying it on the body. oh and for the person that asked about casting the lower extremities it is very possible but time is limited!!!! you can do a man but you have to prepare a container ahead of time and have him at full attention when the alginate goes on because it can be quite cold. you are also able to buy these kits on line complete with instructions. hope this helps

[mayej]

Hahaha, great choice of sticker.
Nice touch.

[desmondtheredx]

Is she wearing boxers?
She looks more like a guy to me

[GaseousMotordong]

How is that in ANY way way relevant to ANYTHING? Seriously, guy...

[raziz]

it is wonderful.. if the tiny bumps bothers some people, it was just caused by trapped air bubbles, rubing some alginate onto the skin before you pour should help...

[desmondtheredx]

or put it into a small vacuum space

[danzo321]

great solution

[danzo321]

Didn't you say you were going to silicone-cast it?

[danzo321]

It may feel heavier but not possible to get heavier. How would that happen?

[danzo321]

Might as well stick your mold back in the plastic cup to keep its shape while casting it. Your plaster is way too thick, that traps air pockets.

[danzo321]

To avoid air bubbles you want to work with thinner alginate, 'scrub' the breast with a gentle tool while submerged, and your plaster should be like tomato soup when you first mix it, not like toothpaste.

[danzo321]

I think I'd go with faster set time/warmer goop.

[danzo321]

It is normal to mix the alginate with tepid water!

[Booche]

D, how would you recommend doing nipple only? Method & Materials? Thanks!

[danzo321]

A shot glass and alginate to fill..

[Shany120]

is that duct tape?

[NeuroPulse]

She does not seem to have a left nipple?

[seeem]

Honestly you're much better off getting someone to apply it by hand, you'd get rid of all those awful air bubbles. If you're casting a small area like a section of chest, you could even get away with trying a warmer mix to try and minimise the goosebumps.... although normal alginate goes off far quicker with heat.

[seabananers]

it ain't always small if you know what im sayin

[Helos]

I wonder if using a whisk adds most of air bubbles to the alginate mix, that's the whole idea of using them in cooking. I seem to remember my orthdontist using something as simple as a tongue depressor or popsicle stick to mix it.

[fragmaster4]

New Bra style  :P

[Azayles]

I can tell the poor girl was cold. That robot sticker isn't exactly laying flat on her areola

<.<

[golddigger1559]

 those nipples look like they could slice through hardened steel like it was butter (not to be a derogatory phrase just making an educated observation)

but seriously how cold was it in there? i could not tell if it was winter outside that garage 

[joe999999]

This is a wonderful idea. Do you have any advice on using this method to mold body parts found between the legs? In the case of such parts of one particular "gender", there is the added problem of maintaining "attention". In the case of another particular "gender" there is the problem of leakage of the dermagel into the body.

[octopuscabbage]

*Warning offensive straight forward language coming*

If your gonna mold your husband/boyfriends man part dont. its not worth the time. just buy a dildo. itll be bigger better. Plus u wont damage his weiner.

[tartinde]

You can also use dental aglinate.  It's the same stuff the dentists uses to make a mold of the inside of your mouth, it's fast setting, made from algee so it won't damage him.  You can find fast setting so the time will be quick.

[chibiwind]

this chick is dangerously skinny, seriously like dangerously slim.

[dert]

In the case of one gender, attention can be met with the assitance of another gender. or try viagra which will certainly last longer than 15 mins

[girrrrrrr2]

um... i do not wanna know more... but you can prob use some Santa's little helper to maybe keep up... and have a girl keep your attention... the other one... maybe use tape...

[idogis1]

I wouldn't use tape, just mix the alginate to a thicker consistency.

[girrrrrrr2]

that would work too.

[rasta_bhoy]

use the ** ring ;)

[Quintin Erasmus]

What proffit in persuing the artist?

[Kasaron]

Is there any way to heat the dermagel, or will that make is unstable? I figure if the gel was at least warm it might be a little less uncomfortable...

[aoriodoragon]

you wouldn't get the pokey nips if you pour warm liquid on em. Keep it cold for perfect moulds! 

[olivierduhamel]

there are detailed info on the subject on
http://www.bodyscape.net/handbook.htm

[brandon borick]

losse the sticker

[Ward_Nox]

Warning: Plaster can get INSANLY hot when it begins to harden which is why the markup studios stopped using it to make casts for doing prosthetics

[BEAST14]

lol

[gora_ji]

Please remove the "WARNING":" - THAT is the offensive part. A woman's breast is in no way offensive. If people have a problem with seeing them, then they ... have a problem!