I am not exactly known for my hat patterns, but I love to knit and crochet hats and usually whip up a bunch for Christmas gifts. I have a few hat patterns on Ravelry, one crocheted and three knitted, and they are now all free patterns. Check them out and let me see your finished objects!
Maureen Crocheted Hat – Tapestry crochet technique
Pinwheel Beret – Knit flat in intarsia and seamed. Fun.
Honeycomb Two-Toned Hat and Snowflake Topper (knit) – Both use corrugated Rib technique, simple knit cables