I don't want to bind it. I think the look of this particular design would look better without binding.
I found a tutorial online, but it also leaves out some info, unless you are not going to quilt it at all. I can't find the site again, but what they did was cut the batting 3/8 inch smaller than the top (should have bookmarked it). However, that would be hard to turn without the batting being attached.
I suppose you could quilt the batting to the top, then add the backing and turn, pillowcase style. I like Tartan's idea of leaving a turning space on the seam line.
I've revised my search criteria. I will just search for mug rugs without binding.
Thanks for the help.