Any cotton fabric will work, except for white on white, it is embossed and doesn't take the ink as well. Ironing freezer paper on the back, makes it easier to hold the paper in place while signing it. The shiny side will stick nicely and it peels right off, leaving no residue :wink:
If you put blue painters tape around the edges, it keeps people from signing out past the seam allowance :D:D:D