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?