I bought sweaters at a thrift store to make beanies and mittens. I was looking for wool but found some mowhair and alpace sweaters.
Mowhair is from the Angora Goat and Alpaca is from alpacas. Both are said to be warmer than wool while still having similar properties such as water repellancy. Also, alpaca and mowhair are not as scratchy.
The sweater I found was a pullover. Due to the ribbing along the bottom and along the neckline I was able to make two beanies out of the bottom and one pair of mittens from the neckline. The sleeves could be used for leg warmers.
These were all hand stitched and have shown no sign of unravelling.
I originally got this idea from this YouTube video