https://m.youtube.com/watch?v=Ufuxu4eZw_Q
So my first video is uploaded to YouTube and so here are the dimensions.
cardstock 8 1/4 x 8 1/4 inches. Score at 2 3/4 and 5 1/2 inches, turn through 90 degrees and score the same again.
Two pieces of cardstock for the lids 5 1/5 x 5 1/2 inches. Score at 2 3/4 inches turn through 90 degrees and repeat.
Three pieces of DSP 2 7/8 x 2 7/8 inches. Cut each piece diagonally into two triangles.