4"x6" piece of DSP score at 1" from each edge all the way around, then punched at 1". Turn over DSP and repeat, snip corners and tape. For the bottom of the box repeat the process with a piece of 5"x7" Chocolate Chip card stock. Score it just a "smidge" more than 1-1/2" from each edge so that the box bottom would fit inside of the lid. Skip the punching for the box bottom.