Since I was a child, I've always loved the budenovka hats worn by the Red Army between 1919 and 1939. The origin of that sentiment was certainly the result of growing up on Soviet propaganda. Of course, now I know that the much revered military commander Budyonny after whom the hat was named, was in reality, thick as pig shit and miraculously managed to escape Stalin's infamous purges of the late 30's. But I won't hold history against the budenovka's quirky aesthetic. When I went to Russia several years ago, budenovka replicas were sold as ubiquitously as the matryoshka dolls. I bought one.
Before my tiny progeny is old enough to voice protestations, I'm going to dress her in whatever sartorially objectionable clothing I like. I can then save the photos for her 21st birthday slideshow. Budenovka will do rather well.
Here's how I made the hat, which is reversible.
I don't have pattern drafting software, so cannot offer a proper pattern, just an image of mine and instructions.
There are five pattern pieces: crown back, crown front, crown side, peak, brim. The only difference between front and side is the button placement marking. To calculate the width of each front and side crown piece measure the baby's head, divide by six. Add 1cm to the width of the back crown piece. The peak spans two front crown pieces, and the brim - the rest of the hat circumference. After you've drawn up the pieces, add whatever seam allowance works for you. Usually I go for 1cm. The seam allowance on the bottom of the crown pieces needs to be wider than the elastic you will use for the back of the hat (see below).
15. Carefully pin and sew the gap shut making sure to line up the seam on both sides of the hat and not catch the elastic. You may wish to tack the seam in place before machine sewing because it's very easy to end up with an untidy seam on the underside, which is of course, not an underside when the hat is reversible!
17. Press the hat. Again.
Chromatophobic buttons, but they are too thick for this.
Some additional considerations:
1. You can top stitch the seams on crown pieces. In this case top stitching doubles up as stay stitching and helps keep the seams open flat. This needs to be done before you sew all the crown pieces together. The last seam won't be top stitched because you won't be able to sew to the end where the seams meet, so you need to decide in advance which seam that will be.
2. Take into account the bulk of the seams around the brim when measuring, otherwise it will be a tight fit. I would suggest adding at least 1cm to the overall circumference of the baby's head.
3. If you want to add an embellishment to the front of the hat, like a red star, that needs to be done before you sew all the crown pieces together, otherwise you'll have difficulty matching the stitching on both sides of the hat. This way you can also have a different embellishment on each side. Don't use any rough fabric for those because it will come in contact with the baby's delicate skin.