FaveCrafts featured the pattern for these sweet hearts By: Maddy Cranley for Maddycraft.com. This knit and felt project is an easy one. It’s a relaxing craft as well. It can be used as a hand warmer, a muscle relaxer or just a decoration. This free knitting pattern is what you’ve been looking for. So go ahead and start crafting. Maddy has a heart pattern to use once your knitted wool is felted or just use an old wool felted sweater for your heart. Read all her ideas and enjoy.