Let your playful side show when you're knitting cozy caps for the babies in your life These precious designs by Lee Ann Garrett reflect the fun of holidays and sports themes. Each can be made in three sizes: Newborn, 3-6 months, and 12 months. 9 Precious hats to knit using medium and bulky weight yarns include Baseball Hat, Basketball Hat, Football Hat, Christmas Hat, Easter Hat, Ghost Hat, Witch Hat, Heart Hat, and St. Patrick's Day Hat.