The Devil Bringer
I get a loooot of questions about this thing, so lemme just break down the process of how I did it. I wouldn't necessarily say it was the best method. I had three different ideas of how to go about it and the one I thought wouldn't work, did.
Clear packing tape
White satin costume glove
Blue LED lights
MASK--WEAR A MASK
The first thing I made was the claws. I posted a picture of them ages ago, but essentially what I did was wrap my fingers in cellophane and use the packing tape to form individual removable claws. This was the easiest part of the whole thing.
I stuffed the satin glove with newspaper, making it as thick and full as possible. I then began taking bits of paper towel and making them into tapered strips that matched the raised design on Nero's arm, including the cavity on the back of his hand. I tacked those down in the position they were meant to be in roughly, making sure everything looked right.
Next I began to cover them in liquid latex. Something to note, this stuff is incredibly toxic. I strongly suggest opening the container and letting it air out for a good ten minutes before working with it. And seriously, wear a mask oh god. I then poured some of the latex into a plastic cup and added acrylic paint, mixing up three different colors in three cups: A bright red for accents, a dark red for the base, and a light blue for the bottom part of the arm.
I then began to paint the base blue, using a hair dryer to help speed up the drying process. The paper towel bits were painted with the dark red latex, and this was really the most challenging part of all. While the latex would eventually hold and stick, getting it to that stage was a nightmare. I had to do several layers, and the whole thing took several hours of painting on latex. I did also have to put on the glove and paint the latex while I wore it quite a few times just to make sure everything conformed. Cae had to help me do some drying, so if you do ever do this, I suggest having a second pair of hands.
When it was done, I did several touch ups with hot glue to make sure everything stuck, then used the bright red paint to lightly go over some of the hard edges, where you were most likely to see the highlights.
Finally the fingers were cut off the glove so I could slip the claws over my fingers. As for the lights, I bought a set of bright blue LEDs that run on AA batteries. Before putting the arm on, I arrange the lights and tape them down to my arm and fingers, then pull the glove on over them. The battery pack is nested up my sleeve. As a further note, I did start with EL wire but it wasn't bright enough. This is because I bought a pre-soldered pack that runs on AAs. If you want ultrabright EL wire, you're gonna have to do some rigging yourself, and it's the kind that runs on a 9 volt. Just for future reference for anyone else. I just didn't have that kind of time.
And there you go. One Devil Bringer.