The last time I went to a meeting of the St. Matthews Knotting/Crocheting Ministry, it was announced that men's hats and scarves. At the meeting I started the brown hat using a Red Heart pattern called "T(hat) Cool Hat." I chose it because I had some bulky yarn in my stash, which I had with me, and the pattern is designed to use bulky yarn. It is finished off with a row of brown single crochet and a row of beige single crochet. For the scarf I used another Red Heart pattern. It is basically a long rectangular granny square. The first round is worked on both sides of a long starting chain. I finished odd with brown and beige to make it coordinate with the hat. I like it but I fear the hat is too small for a man.
So next I tried a pattern from a book I have called "Clever Crochet Accessories." The pattern is titled "Sedimentary Hat." It has slip stitch rows of contrasting color in between wavy rows. Very cool but kinda fiddly. You can't do it mindlessly. There's counting involved and subtle changes to stagger the waves and gradually decrease to the top. Also, it recommends carrying the two colors along. No cutting and attaching at the beginning each row. My color changes are no exactly seamless. The uniqueness of the stitch pattern does not show in the picture. I will add a close up picture. The matching scarf is in the same granny stitch pattern with the finishing rows a wavy row and a slip stitch row from the hat pattern.
The green hat is a ribbed stitch.