Thinking analysis:
1. Once "Tian Zige" appears, it cannot be folded, so "Tian Zige" cannot appear.
2. A horizontally rotating cube has four sides. The four sides are glued into a circle and a bottom is added, which just fits the meaning of the question. If there are five small squares in a row, after the circle is folded, the extra one cannot be folded to the side as the bottom, so there are at most four squares in each row.
The unfolded diagram satisfying the above two points can be folded into a box.