Tools & materials:
- 3 pieces of warm stretchy fabric in contrasting colors. You only need a couple square feet of each; the pieces shown could have made 3 or 4 hats like this
- tape measure (or string, in a pinch)
- sewing machine & thread
Step 1: Measure & cut
Lay out your fabric pieces in a pile. The parts are symmetric so it doesn't matter which side of the fabric is up (and your fabric may not have a right & wrong side anyway).
Cut a pointy shape with divots, as pictured (it's not hard to understand, just hard to describe). You'll almost certainly make the hat too long, for some reason it's hard to underestimate the height of the crown. This is fine, we'll cut off any excess later.
Step 2: Stitch the sides
Step 3: Cut and stitch the crown
Cut around the edges of the triangle thus formed. Pin the pieces together in a couple places, and stitch all the way around the edges. Snip the points to reduce bulk (be careful not to cut the stitching). Turn the hat right side out (a pen gets the points nicely).