Over the summer at our local farmer's market, a family owned and operated sheep farm sold a skein of natural wool (and a 2 lb shoulder roast consumed for Christmas) to an ever-growing family. With some slight manipulation that skein of yarn turned into a warm, woolly cowl.
Without following a particular pattern, I really just eye-balled the size, measured against my own neck, until it seemed like the right fit. I worked double crochets in the round for 9 rows. No television show to gage a time frame, just me and my oldest hooking along in bed during a lazy Saturday afternoon.