This is a very special kind of hat pattern with infinite possibilities, it is also included in the Math for Hats e-book.
Have you ever read one of those make-your-own endings books? This hat pattern is inspired by the freedom of choice! Instructions are provided for several varieties of brims body shapes, and crown decreases. You’ll follow along choosing between ribbed, rolled, or seed stitch brim, then choose beanie, beret or slouchy body style, and finish with a beanie, ruched, stocking or beret crown. Do it different, every time.