Let's begin from the triangle base form. Let's fold the two sharp corners to the direct. In result we have received the model, which I am declined to consider as the base form. Only from the classical models, submitted on the given site, four begin by this way. Besides the given model there is the lily, the turtle and the helmet.

But return to the folding "the bishop's hat". Unbend two triangles, with which we dealt at the previous stage. Then, in front and behind we shall lift two triangles, which after disclosing of the cap will help it to hold the form. And, at last, we shall give to the model a final kind.