Diagram for box card

 I came up with this diagram back in early 2017. I made a cut file but this can easily be done without a machine. It's just a matter of scoring and cutting in the right spots. For the inside pieces you attach your embellishments to, just cut a strip 1" wide and 4.25" long. Score ends 1/2" from edge (the long middle section should be 3.25" - same width as the long side of the box).
Here's an example of a box card.