Trick boat

This device cannot show the 3D view. Follow the step pictures and text below instead.

1. 

   1. Crease the centre line

   White side up. Fold the right edge over to the left edge and unfold to mark the vertical centre line.

2. 

   2. Fold the sides to the centre

   Fold the left and right edges in to meet on the centre line, like closing two doors.

3. 

   3. Crease the top and bottom

   Fold the top edge and then the bottom edge to the middle, creasing well, and unfold each again.

4. 

   4. Pull out the bottom corners

   Fold the bottom edge up to the middle along its crease while pulling the two hidden corners out to the sides as points. Press it flat.

5. 

   5. Pull out the top corners

   Do the same at the top: fold the top edge down to the middle while pulling the two hidden corners out to the sides, and press flat. You get a long hexagon.

6. 

   6. Raise the top left point

   Fold the top left point up along the line from the centre to the top left corner of the middle. A triangle now stands on the boat.

7. 

   7. Turn over

   Turn the model over sideways. A big square shows in the middle of the boat, with the tip of the triangle sticking out at its top right.

8. 

   8. Fold the square corner to corner

   Fold the top left corner of the square down to its bottom right corner, along the diagonal, in front. You get a tall upright shape, with one corner sticking out below the boat.

9. 

   9. Fold the bottom corner up: the sailboat

   Fold the corner sticking out below the boat up to the right, along the line from the foot of the sail to the bottom right corner of the boat. It becomes the right end of the boat: your sailboat is done! Now try the trick.

10. 

    10. The trick: fold the end back down

    While your friend holds the tip of the sail with eyes closed, fold the right end of the boat back down along the same line. The sail and the lowered end now make one long upright boat, and your friend is holding its bow, not the sail!

11. 

    11. Back to the sailboat

    Fold the end up to the right again. It is a sailboat once more, ready for the next friend.