I usually write mine out by hand using a Micron Pigma pen. I usually use muslin and leave it larger till I get it done. I iron the muslin first, then I use a large index card and draw around it with a disappearing ink pen. I put the fabric on a piece of ultra-fine grit sandpaper and write what I want (in the box I made by tracing around the index card), using the Pigma pen. The sandpaper keeps the fabric from slipping around. When I finish my writing, I trim the fabric about a half inch away from the the drawn line, turn under all the way around, pressing as I go, then hand applique the label to the back of my quilt.