My son and I as the Hulk Buster and Iron Man. Roughly 100 hours went into building the two suits. For both suits, a rough cost of:
$30.00 for foam
$33.00 for led lights
$50.00 in misc materials, glue sticks, exact-o knife blades and paint
I'm sorry I don't have more pictures of the build but Halloween was rapidly approaching and I had no time for extra steps, for that I apologize.
This build was the most enjoyable one to date though and we received a pile of compliments. My son was extremely happy and I hope he remembers this moment for a long time to come.
This was built free hand with no digital assistance at all. Just a couple of downloaded pictures. So please don't judge to harshly.