Actually I first saw the tutorial on Quilting Board and repinned to Pinterest. Look for pressing bar. I modified the instructions a bit. I don' t think Insulbrite or any type of batting is necessary. I first used Elmer's all purpose glue and wrapped the stick (I'm using 12" length) with flannel then with some duck fabric I had left over from another project. Pressed under the ends of the duck ( not the flannel because that is not necessary) 1/4" and sewed on the machine. Then pressed one long side under 1/4" and wrapped and glued this on with Elmer's as well. My husband put 5 staples along the edge for me because I'm a little wimpy with hand strength. The cut size of the flannel is 3&1/8" by11&3/4". The duck is 3&3/4" (this is the edge that gets turned and sewn) by 12&3/4". The one I bought and paid big bucks for had what appears to be a very thin batting and just muslin for the out cover. My friends said they liked the duck better than the muslin but whatever you have will work. I also had some decorator weight cotton left from another project and covered some with that. I am calling them "designer" pressing sticks! I'd send you one if I knew who and where. But I'm sure you could make one yourself and I guarantee it will become a favorite quilting gadget!