This costume was worn by my bf, Keith. I did not make everything. I was responsible for the coat, red "skin", and tail.
After watching the behind the scenes for Hellboy 2 - The Golden Army, my bf and I made the decision not to make the jacket out of vinyl or anything similar (this also came from the very sweaty experience of the Skeletor cloak) but went with their idea of canvas. It had a nice flowy weight, without being over bearing and hot. I simply followed a pattern for this and extended the length.
To minimize layers that would trap bodyheat, we did not go with a full red bodysuit. I added a turtleneck piece to the black t-shirt and made one red glove for the "normal" hand. Lastly I attached legs to the shorts (which I cut down from pats).
The last piece I created was the tail. Using the same spandex, I sewed a long narrow shape, lightly stuffed it with filler, and put some wire in near the bottom to give a little curved shape. I put velcro at the end so that under the coat I could wrap it around his belt.
I-Con 2010 "Best in Show"