In this tutorial, we learn how to make 300 Spartan arm braces/arm guards. You will need: a cereal box, paper, newspaper, scissors, super glue, flour, water, spray paint in gold, and masking tape. To start, you will need to first draw the shape onto the cereal box and then cut it out. From here, mix up a cup of flour with a cup of water until it's well combined. Then, dip strips of newspaper into it and place them over your cereal cut out. Then, let this dry and place wire and masking tape over it. Once this is finished, you will be able to paint it and then let it dry to wear for a costume!