6 Mitten Sewing Patterns From Old Sweaters-by Laurie Turk..How to make mitten sewing pattern, and comfy smitten from upcycled sweaters complete with pictured instructions on how to make for homemade gifts. Use these free patterns to create your own sweater mittens in a fun trendy style. These designs include convertible mittens, dip-dyed mittens and even fingerless mittens that are super fabulous.