It sounds like parchment paper is popular for a pressing sheet. I bought the beige teflon pressing sheet years ago and I still have it. It does work great for applique with wonder under on it. I lay the pattern picture under my semi-transparent teflon sheet. I peel off the paper backs from the applique pieces and place them in the correct positions. If you get the whole picture layered, the teflon sheet lets you peel off the whole picture as one big applique to iron it to your background square. Does the parchment paper work to do that too?