Step 1:This is the front of the paper.
The backside is almost the same, but it has no
purple border.
Make mountain- and valley-folds over these 4 lines.
Unfold each fold after you've made one.
Step 2:
Pull the corner at the left (see arrow) to the corner at
the upper right.
Do this by making a valley-fold over the line on the right
and a mountain-fold over the line on the left.
These lines are already prefolded in step 1.
Step 3:
Fold the end at the arrow downwards by making a
valley-fold over the green line. Make this fold over both
layers of the loose piece.
Step 4:
Fold the loose piece (see arrow) to the left by making
a valley-fold over the green line.
Step 5:
Fold the corner (see arrow) to the backside of the model
by making a mountain-fold over the green line.
Step 6:
Make a mountain-fold over these 2 short green lines.
Step 7:
Repeat step 5 and 6 on the other 2 corners of the model,
see arrows.
These folds make the hat more round.
Step 8:
Now the model looks like this, turn the model.
Step 9:
Hold the model the same as I do in this picture.
Press the bottom of the model (see large arrow) downwards
with a finger of your other hand.
The model won't open while you do this, because your
thumb holds the open edge on place, see smaller arrows.
Step 10:
Press the bottom a little further downwards on the edges,
see arrows.
Keep holding the open edge on place with your thumb
while you do this.
Step 11:
Turn the model again.
Step 12:
Hold the model the same as I do in this picture.
Hold a piece of the edge, see arrows, in your other hand
and push this piece your holding downwards a little.
Do this on several places of the model, see arrows for
example.
It's no problem if you get some wrinkles in the model
while you do this.
Step 13:
Lay the model on the table and press the edge (see arrows)
flat from above. You don't have to press the purple border
flat.
Make sure the wrinkles are pressed flat too.
The sombrero is ready!
