Markers - you can go here to read about my workings with these markers. There are a few do's and don'ts. Just scroll down through the posts.
Thread - these are what I use for quilting thread. This thread doesn't break or snap when pulling on the quilt to make the bed. There is one quilt that needs to be fixed because the quilting thread snapped in places (I actually heard the thread snapping). Also, my thread gets waxed and if anyone is interested, a tutorial can be made up for you.