DUDE THESE COSTUMES LOOK SICK! As soon as i can, I am doing the pepakura, and as for weapons, nerf guns work great! I was wondering how much that foam was because i will need to use something like that for my chest piece. I have motocross armor for padding underneath and i will put ODST armor over it, but i need the chest piece or at least the foam shoulder-straps. thanks
You can get these foam from automotive stores and hardware stores. I bought mine from KMart. I know Harbor Freight Tools carry some too. They can cost between $20-$25 per pack. Each pack can be between 4-6 pieces. Hope that helps.