Crochet Snowman Hat Pattern and tons of other free hat patterns
Free Crochet Pattern: A leprechaun hat (pen/pencil decoration). Pattern by KatiCrafts. Could do a Mad Hatter or top hat as well.
Leprechaun Hat Beer Cozy - free crochet pattern at You Should Craft.
Have a Frozen-obsessed kid in your life? Make that little gal's day with this super-cool Frozen-inspired crocheted Princess Anna hat pattern! Anna is the best!
Crochet 4 Leaf Clover -'tis a perfect shamrock for St.
Crochet Four Leaf Clover - Free Pattern & Video Tutorial - B.