Reddit mentions of Gold Metallic Stretch Spandex Fabric 60" by The Yard

I'll run you down the materials, as it was thrown together really quick. Best part is I used no paint, heh. the white pieces are just that floppy EVA craft foam you get from a craft store with fake white leather from Amazon spray glued on. The gold pieces are the same craft foam with a layer of poster board spray glued on to offer more rigidity and a super flat surface, and the gold is gold spandex from Amazon cut into 2 inch strips places 1.75 inches apart, so they overlap using the same spray glue. I used the same fake white leather and foam backer rod from home depot to make the trim. I secured the trim with staples and then hot glued everything else together. The chest and back plates of the top pieces had to be thicker and more rigid, so I used those EVA foam floor mats you get online or at home depot with some Velcro to make it removable for transport (everything folds well and flat packs). I used hot glue and Velcro to secure the bottom gold pieces as well as make them removable. I also hot glued and duct taped some magnets behind the front and back plates of the shoulder part as well as the back of the best pieces on both sides. This makes the shoulder part snap in securely and hold position. The materials cost is very cheap. Getting magnets, velcro, and hot glue is easy, so I'll post the other materials links here for ya. I highly recommend you get a rotary cutter, cutting pad, and one of those big square rulers from Walmart to save you a ton of time.

Gold Spandex

Foam Mats

Spray Glue

Fake White Leather

Craft Foam