I have been collecting 100% wool sweaters from the thrift shop. Usually a bag of items is only $2. Sometimes at the end of the season sweaters are FREE. I bring them home and wash them and then toss them in the dryer. I knew I wanted a hat for the new jacket I just got. Down to the basement I went in search of a sweater. I keep them in a rubbermaid container out of sight. This is such an easy craft. All you need to do is find a hat you already own. Trace around it leaving enough room for the seams. I used the bottom of the sweater. I cut out both pieces at the same time. Then turn the sweater pieces inside out and sew around the edges leaving the bottom opened. Turn right sides out and you are done. If you'd like to make leg warmers, all you need to do is cut off the arms and sew an edge around the top. The bottom edge is already done since it is the cuff of the sweater. This project took me a total of 10 minutes to complete. I'm so happy with the results!