: Locate the small hole at one end of the model. Blow into it steadily until the paper expands into a cube. Method 2: Modular Sonobe Cube

: Start with a square sheet. Fold and unfold it diagonally both ways to create an "X" crease across the paper.

Insert the triangular flap of one module into the center pocket of another.

Fold the top-left corner down and the bottom-right corner up to create diagonal edges.

This version uses six identical units (Sonobe modules) that lock together. It is much sturdier than the single-sheet version and looks great when using different colors.

: Fold the left and right points of your diamond inward to meet the center line. Repeat this on the back side.