I use fabric glue to glue any embellishments that I can't sew down. Don't use a glue gun. Some glue on a toothpick. You don't need a lot. Try it on a sample piece of fabric first and let it dry really good and then give it a little roughing up, just a little, and see if it stays on. Like you mentioned, it is for a wall hanging. So the glue will definitely work.