I used insulation board cut into 2 x 4 pieces, sprayed with basting spray, covered with batting. I cut squares at the corners to reduce bulk, used duct tape to hold the edges to the back. I then used the yellow head straight pins, I didn't have ant sewing machine needles to use, and attached it to the wall. It's still there too. The ribbon on the end covers the seam in the batting where I pieced it. Thanks for all the comments.