I knit this hat in wool tapestry yarn I found out the thrift store. I worked a 2 x 2 corrugated ribbing for about an inch and a half before making up the tree pattern as they went along (I planned it so the trees would be a multiple of eight stitches). from there, I made up the pattern. As I went along, letting the amount of yarn I had left dictate the motifs I used. the hat is quite large – close to 24 inches around, so good for someone with lots of hair or dreads. Since it’s a 100% wool yarn hat it is quite warm and will absorb quite a bit of moisture, making it suitable for wearing and light rain. the top of the hat uses my normal decreases, decreasing very quickly over just a few rounds to finish off the hat. I worked a single crochet stitch along the bottom 10 added tiny pop of color, and use up the leftover bit of green yarn that I had left. The result is a very retro inspired hat with plenty of quirk.