Fiber Crafts Hands On Series Heritage Frederick wants to introduce our new program series about wool and cotton. Our Fiber Crafts Hands-on Series is a four session series starting with raw cotton/wool and ending with a loom woven/knitted/crocheted object that you’ve had a hand in from start to finish. Sign up for one or Sign up for All! Session 1: July 10: What is yarn/thread? Session 2: July 24: How is yarn/thread made? Session 3: August 7: How do you dye yarn? Session 4: August 21: What can you make with yarn?