Tried this today got myself 12 nice blocks and it was just as easy as it looked in the video.
(mine came out to 4 3/8 in wide but did like Rose Marie and just cut large strip same size)
daughter helped lay them out we've got 12 different layouts..
some do look alike but there are differences because she used the 2 diff squares in different ways.
Will post a pic soon as I get them sewn together part way cause if I move them now I'll not know how they go together again LOL