Forgive my (probably completely wrong) French, but I couldn't resist.
How to make a star box
Cut along outside edge only (black line).
Score internal lines (red).
Pre-crease all score lines by pinching along them with your fingers.
Fold over the three glue tabs, not including the large one with the curved cut-out.
Apply adhesive to the glue tabs. Fold the piece at center line, match up edges, and adhere front and back together.
Hold the star slightly open with one hand. Pop each of the five sides in by pushing down in the center of the side.
The large tab remains unglued to allow you to open the box.
Extreme Cards and Papercrafting: pop up cards, movable and mechanical cards, digital crafts and unusual papercrafts.