Witch's Hat

Thanks to Cubes, Aisling and Brandon for their ideas on how to make a wizard's hat or a witch's hat.  Cubes suggested cutting out two triangles and sticking them together.  Aisling and Brandon both suggested rolling a piece of paper into a cone.

Either of these methods would work to make a pointy hat.  

But there is a better way to make a conical hat.

What do you think?