Cthulhu Costume - Latex Body Suit

 by alexthemoviegeek
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That time of year again. I must follow tradition and make a costume. But what costume could I make this year that would be more complex, more unique, and more impressive? In brainstorming, I was looking at classic designs, like the Alien, and I was reminded of influence that Giger cited, the literature of H.P. Lovecraft. Once the name "Lovecraft" came up, my mind went immediately to Cthulhu, of course.

I've made many costumes as replications of cinematic characters. But this was something different. Cthulhu is a strong part of the popular culture of recent generations, but is seldom seen in three dimensions. There have been a number of visual interpretations of the Great Old One, from video games to South Park. The public does have an image in their mind when they hear "Cthulhu". This character allowed for a costume that could be unique in several ways: it's a costume that no one else would have, or imagine me having, and people may not be able to tell I made myself, because of the complexity of the design and construction method. It would also allow me to be creative and make my own design. All of these unique prospects appealed to me. And I love the challenge of creating extravagant items on a low budget. Producing a full-body latex suit often costs into the thousands. My aim was for under $300.

Prior to my own costume, I had only seen one half-decently made serious costume of Cthulhu. Indeed, there have been many furry costumes and adorable plushies, as Cthulhu has been turned "cutsey". But it's time to get him back to his more monstrous form.


Here is a video you can watch that shows the overall process. It's easier to see some of the steps in motion, but the Instructable has much more information and is more detailed.


 
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Step 1: Background and Research

I find it more engaging to make costumes of what I understand, so I sought knowledge of Cthulhu and Lovecraft; the history, the mythos, and his storytelling. Lovecraft often wrote about forces beyond our Earth, beyond our galaxy, even beyond our physical realm. As such, the entities within his stories are often impossible to describe, and do not look like any life form we know from our own planet. Cthulhu, at most, was described as vaguely anthropoid, with wings and scales, and writhing tentacles on his face. Creating a complete design out of such vague descriptions is a bit of a fool's errand. Lovecraft's work doesn't really lend itself to full visual depiction; it truly works best as a horror of the imagination. It's the impossibility of the entities and the vast cosmic horror of the mythos that causes terror within the reader.

So I had to admit right from the start that whatever design I came up with would probably not please any Lovecraft enthusiasts. And I don't mean to. This is just a costume for fun. An advantage of having such a vague description to work off of means I can do something uniquely my own. At the same time, though, I did want the average person to be able to immediately identify the design as "Cthulhu". So I stuck with the regular humanoid body and octopus-like head. Which was fine by me; designing is not my best strength, so it was good to have a base to work off of.

Once I decided that Cthulhu would be a good costume to make, I had to do some planning. How would I make this costume? I wanted it to be lightweight, easy to get in and out of, and highly detailed. Sculpting the body in clay, and making plaster molds for casting a latex suit would be a great challenge, but seemed like the best way to go. My first instinct was to make a body form with foam boards, covered with plaster strips for a body base to sculpt on top of. And then make plaster molds on top of that. But how to mold the body parts? Considering size and weight, I knew I would have to mold separate pieces (like the torso, arms, legs, and head) individually. But plaster can be very heavy, and expensive if you use a lot of it. Could I somehow make molds with a resin and fiberglass instead? I explored many potential methods. This researching, in addition to learning more about Cthulhu and Lovecraft, delayed my production of the costume. I started planning as early as late August, but didn't begin any actual construction until October.
CrayfishYAY says: Feb 4, 2013. 7:39 PM
ZOIDBERG!!!!
nnewell says: Dec 26, 2012. 9:12 PM
can i buy liquid latex for costumes like this on amazon? I'm planning on making a man of steel costume so im wondering where i can buy liquid latex for a full-body suit like this.
poofrabbit says: Nov 13, 2012. 6:52 PM
Congratulations on being a finalist in the Halloween contest!!! Can’t wait to see if you win! Good luck!
pokiespout says: Nov 6, 2012. 7:21 AM
This is beautiful! We should battle our monsters.
dagon 159.jpg
flyingpuppy says: Nov 4, 2012. 6:16 PM
But how does a Cthulhu kiss?
Orngrimm in reply to flyingpuppyNov 6, 2012. 1:38 AM
You REALLY dont wanna know... ;)
Orngrimm says: Nov 6, 2012. 1:37 AM
That, Sir, ist a lot of work, but the outcomings are all worth the effort and price! superb costume for sure! :)
ethertree says: Nov 4, 2012. 10:26 PM
This is awesome! I've never worked with latex before - I think I might have to after reading this. Fantastic costume, and thanks!

I'm learning some mold making and casting right now, and have a small general tip: To remove water-based clay from plaster, get out what big chunks you can by hand, then soak the (fully cured and dried) plaster in a large container of water. Agitate as needed. Since the clay hasn't been fired, it dissolves right out (and dissolves faster with warmer water).

This may not work as well if you're using the store-bought plaster of paris strips instead of cloth/burlap drenched in plaster, or if your mold is patched with joint compound (I don't know enough about joint compound to say). Perhaps that's why you didn't do it and I'm just going off on an unnecessary tangent :P

But anyway, that could be solved by patching the plaster mold with plaster instead of joint compound.
Time lost in the soaking of molds for both steps, but time gained in the swifter and hands-free removal of clay.

Once again, awesome job, and thanks!
flamekiller says: Nov 4, 2012. 4:10 PM
Awesome costume!

One question though ... why not dissolve the styrofoam head fill with acetone instead of chipping it away bit by bit?
alexthemoviegeek (author) in reply to flamekillerNov 4, 2012. 8:39 PM
Because I'm an idiot. Ha.

I was aware that acetone can dissolve Styrofoam, but for some reason I never made that connection during that process.
flamekiller in reply to alexthemoviegeekNov 4, 2012. 10:05 PM
The best ideas always come after they would have been most useful, huh?

Oh well, there's always next time, right?
LobosSolos says: Nov 4, 2012. 9:24 PM
Did I see you in this at Dragon*Con in Atlanta? It looks familiar.
alexthemoviegeek (author) in reply to LobosSolosNov 4, 2012. 9:35 PM
That would not have been me, no.
GTAtomten says: Nov 2, 2012. 10:41 AM
Very cool work! Great to see from you again. For your future projects, you should try putting so called "keys" into your 2-part mold halves, basically made by making an indentation in your dividing wall to create a bulge on one half that fits into the indentation on the other. That will ensure your mold halves fit together properly.
alexthemoviegeek (author) in reply to GTAtomtenNov 4, 2012. 9:19 PM
I did have those on the finger pieces, yeah, slipped my mind for earlier pieces. But for the most part, the molds I made were so irregular around the dividing line (not perfectly smooth) that they only really fit one way anyway. But yes, even still, keys would have helped with some other molds.
lisascout says: Nov 4, 2012. 5:02 PM
DUDE. You are one serious costume creator! Have you ever tried getting in touch with a large filmmaker who does this kind of work? Your talents and tenacity are rare. SUPER JOB!
Jerrib says: Nov 4, 2012. 10:58 AM
Awesome!!!
Jaruemalak says: Nov 4, 2012. 7:54 AM
This scares me... and I am impressed as hell! Great work!
jwilliamsen says: Nov 4, 2012. 7:24 AM
The costume is impressive, but I think I'm most impressed by your focus and tenacity. Reminds me of my days building furniture on the living room floor of my apartment.... Great job - love the overview video. :)
macgeek says: Nov 4, 2012. 7:09 AM
Awesome, Winner, Spectacular!!!!!

Many props!

Jonathan
Carlos Marmo says: Nov 4, 2012. 6:29 AM
No words!
Congratulations!
fungus amungus says: Nov 1, 2012. 11:22 AM
Niiiiiice!
Carlos Marmo says: Nov 1, 2012. 11:03 AM
WUNDERBAR!!!
stringstretcher says: Nov 1, 2012. 8:32 AM
HP himself would approve! Wow. Great work on the instructable, too.
khoirulabd says: Oct 31, 2012. 10:01 PM
awesome
scoochmaroo says: Oct 31, 2012. 7:54 PM
Oh, Alexthemoviegeek, how I look forward to your Halloween entries every year. You never disappoint. Or make me envious of your life. <3
Aleator777 says: Oct 31, 2012. 7:15 PM
Ia! Ia! Cthulhu Fhtagn! Awesome work!
Honus says: Oct 31, 2012. 6:45 PM
Absolutely freaking fantastic. Guillermo del Toro is smiling somewhere...
jessyratfink says: Oct 31, 2012. 5:26 PM
The way you made it is genius! Amazing job. :D
poofrabbit says: Oct 31, 2012. 4:35 PM
Oh man how cool is this! Very nice work!
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