Blackout / GrindorOk, well...the reason I was invited here, I guess.
Pictures of the finished product: (download for the bigger pictures)
http://natsumeryu.deviantart.com/art/REVEN...-HERE-127013384http://natsumeryu.deviantart.com/art/You-W...-What-128402445http://natsumeryu.deviantart.com/art/Evade-128402898http://natsumeryu.deviantart.com/art/Trademark-128403739http://natsumeryu.deviantart.com/art/Regal-128404557http://natsumeryu.deviantart.com/art/Umm-no-128405746I plan on getting more pictures if I get to any Halloween events.

WIP:
First off, I'm cheap

My poorness guided my decisions on this costume, XD.
I decided I'd have another go at making a Movie-verse TF costume after my Starender Cosplay did well at the two places I took it for Halloween 08, and I didn't think it was that special. I thought, with God's guidance, "If I could make this flimsy little costume (Starender), and people like it, then I should put my newfound knowledge to another movie costume, which would REALLY make people happy."
And so, shortly after October of 08 I started collecting cardboard and stuff.
Blah, blah, didn't really do anything until April 09, when I decided on doing Blackout, and I had collected a bunch of various foam from the boxes stuff came in from moving to a new house. And I had done a lot of reading on these forums by then... X3 (I found you guys before I started on my Starender costume)
It wasn't until the last or second to last week in May (the 21st) that I actually began working on the costume, and I set my deadline for the Second Movie release, though I didn't plan to where my costume to the theater (I just work better with deadlines...). I did finish it in time - so this costume took about a month to completely build.
I don't want to go TOO involved in the building process, so I guess I'll give you pics with short descriptions...and if you have any questions feel free to ask.
Basically, my costume is shoes, pants, shirt, gloves, backpack and head.
Mostly all of the "armor" is made of various styrofoams, with exception to tiny/thin pieces (hands, face), which are cardboard, and the supporting understructure for the backpack is a double thick cardboard (from a refrigerator box

) Glued it all together with hotglue, and painted with acrylics. Oh, and the hub of the helicopter blades was a potato salad bucket, lol.
WIP/Detail Photos: (In the best Chronological order I can come up with)
HeadI wore a blue headsock on backwards (so the eye hole was in the back), then glued stuff on it and painted it (because polyester doesn't dye...). I also painted details on it, including the optics, which, before hand I had wanted to be little LEDs,.but I ended up being too lazy/poor to get them, so I painted them on too. They didn't turn out bad, and I don't have to worry about wires tickling my face....
http://natsumeryu.deviantart.com/art/BOWIP-Head-130714509Since I don't have any mirror pictures of the completed head, I'ma look through my videos and if there's video of it I'll upload and link you.
GlovesNot really a WIP, but they were done in about a day. They were easy.
Basically gloves (which I did buy specifically for this costume - $10....nice gloves...a lot of fun to wear...) that have painted cradboard pieces hotglued together.

I can make a fist, though I don't think I have pictures of that....
ArmsBuncha softer styrofoam pieces glued all around my lower arm. I nixed the few skinny upper arm pieces Blackout has because you can't really see my upper arm under his huge backpack, and cause they would just make it harder to move when fully costumed. Plus they'd be weak... The lighter S shaped pieces on the inside of the arm are the only ones made of thicker/tougher foam.
http://natsumeryu.deviantart.com/art/BOWIP-Arm-130717638You can see Camshaft, my Camaro in the back, ha ha. And Grill is on the right...and Fender or Hinder on the left...Fender I think....lol.
These pieces were carved out with boxcutter and a grinder (to make them curved).
LegsThinner, harder styrofoam than the arms, except for Blackout's knee...jutting things... I had to make those out of the softer stuff because they were curved and thicker. The pieces on the back ofthe upper legs are cardboard - so I can sit in my pants.

(Blackout can sit...if there's a chair with no back, and it's tall enough for the blades not to ram into the ground...ha ha)
http://natsumeryu.deviantart.com/art/BOWIP-Legs-130720442I'm very happy with how easy they are to move in, despite the mass of pieces all over it (I thought the ones on the inside of the legs would be a problem).
BackpackDefinitely the longest thing to do, considering all the kibble and such. I nixed some random kibble that I had no clue what it was on Blackout. It seemed utterly useless, plus nobody noticed those pieces anyway...It's closest to the missiles on the toy, if you wanna look for it.
http://natsumeryu.deviantart.com/art/BOWIP...Part1-130725749http://natsumeryu.deviantart.com/art/BOWIP...Part2-130726921Dad made the fuel tanks to save me time.
Shirt: Front and BackLast pieces I did -
http://natsumeryu.deviantart.com/art/BOWIP-Shirt-130728622I guess I don't have any pictures specifically of the feet. It's just one piece that attaches to the laces of the shoes. Lemme know if you want me to take pictures of them.