Create a Warm Hat & Leg Warmers From an Old Sweater By giannyl in CraftFiber Arts3,21182Introduction: Create a Warm Hat & Leg Warmers From an Old SweaterBy giannylwww.GiannyL.comFollow More by the author: About: Learn how easy is to design your own clothes! The best Do-it-yourself videos on the web! Join me :D More About giannyl » Learn how to Create a Warm Hat & Leg Warmers From an Old Sweater. All you need is an old crappy sweater, some scissors, and some string.