Step #1: PrevNext
Start with a sheet of letter-size paper (8 1/2 x 11). Fold the left edge to the right and unfold.
Step #2: PrevNext
Fold the left and right edges to the center.
Step #3: PrevNext
Beginning the crease at the top left corner, fold the top right corner to the center.
Step #4: PrevNext
Fold the upper left corner down to lie along the right edge, creasing along the lower edge of the flap made in step 3.
Step #5: PrevNext
Fold the upper right corner down to lie along the left edge, creasing along the lower edge of the triangle.
Step #6: PrevNext
Fold the bottom portion of the model up along the lower edge of the triangle.
Step #8: PrevNext
Repeat steps 3-6, this time beginning the crease at the top right corner, folding down the top left corner to the center. Then unfold to step 3.
Step #9: PrevNext
Press the shaded areas together, creasing along the indicated fold lines. Then lay the resulting flap over to the right.
Step #10: PrevNext
Repeat step 9 with the lower portion of the model, bringing the shaded areas together, and laying the resulting flap over to the left.
Step #11: PrevNext
Lift and squash the lower flap along the indicated crease lines.
Step #12: PrevNext
Fold the right side over to the left.
Step #13: PrevNext
Lift and squash the upper flap along the indicated crease lines.
Step #14: PrevNext
Fold the left side over to the right.
Step #15: PrevNext
Lift doubled flaps A and B up so they stand up at 90° from the plane of the model. Rotate the model 1/4 turn.
Step #16: PrevNext
Here is a view showing the model in perspective. Lift doubled flap A and place it entirely between the two flaps of B.
Step #17: PrevNext
Place flap X inside the pocket indicated. Repeat behind.
Step #18: PrevNext
Fold the protruding triangular flaps down, one on each side.
Step #19: PrevNext
Fold the tip of the triangular flap downward to completely lock the handle. Repeat behind.
Step #20: PrevNext
Here is the result. Turn the model over.
Step #21: PrevNext
Reinforce all creases passing through the center with mountain folds. This makes the model spin better. Turn the model back over.
Step #22: PrevNext
Number each of the six triangles to complete your spinner.