Never underestimate the possibility of a cardboard box. Cardboard can be used to make armor, weapons, or it can be the entire costume. Anything that looks like a box is perfect to construct from cardboard. A few ideas: a takeout container, a mailbox, a vending machine, a magazine or book, a washer or dryer, a Boxtroll, and the list goes on. Redditor Dullydude’s mom worked for a box factory when he was growing up, and she made his costume every Halloween. He shared photos on Imgur of the times he dressed as a freezer with functioning lights, a popcorn box with real popcorn, and a Rubik’s Cube with rotating layers. I love the creativity.