These are the supplies you need for 1 Ark of the Covenant. Use 3/16 inch foam core board. Cut 3 5 inch by 3 inch pieces for sides and top. Cut 2 4 5/8 inch by 2 5/8 inch pieces One will be the bottom, the other will be a 2nd layer for the lid. Cut 2 3 inch b 2 5/8 inch pieces for the sides Straight pins will be used to secure pieces together