Need muscle suit.
So here's the thing. I'm building a green goblin costume(humberto ramos kind) and I need to make my self look a little bigger. I don't need to see any muscles just bigger. I've considered using bubble wrap but I'm afraid I might die from Hyperthermia, plus if I sit down it would sound ridiculous. So the next obvious choice would be to use upholstery foam, but I've never worked with it before. I've thought about using plain old newspaper and and strap it down with duct tape, but I think that might be noisy when I walk. Check the pictures to see what I mean. One picture is from a comic book and the other one is a costume made by jacemoore on deviant art.