1. Take the jumper sleeves and cut them to the length you want. Pin them to the narrowness you want around your wrists.
Now stitch or overlock this seam.
2. Cut a hole in the stitching along the seam, right up near the cuff of the sleeve (this is for your thumb to poke out, so measure where you would like the finger part of the mitt to come to)
If the wool is properly felted (see earlier blog) you don't need to hem it as it won't fray.
Your finished mitts!