Steven K Smith Props has put together a hughly impressive Dead Space cosplay which took 300 hours to make over three months.
The Necromorphs were designed by Damien Zimmerman, a contestant on this season of Syfy's Faceoff. Zimmerman says:
"This build was by far the most detailed costume/prop I have ever attempted to create. But, after its completion it was also my most satisfying and rewarding. The entire build took over 3 months and 300 hours of blood, sweat, and super glue :)"
You can find out more about the cosplay, including how it was made, here.
