A couple of you have asked about the banding I am using for my Randje per Week project.
It is 28 count linen banding and it is about 6 3/4 inches wide. The edging patterns when posted can be adjusted to fit any width. I purchased my banding at my LNS, Stitchville. I bought the last of the red. They do have some with green and with blue colored edging. The challenging part is finding a piece of banding that is long enough. The Randje blog recommends about 8 feet of banding. The longest piece that Stitchville had was 6 feet. I decided I was okay with that.
I'm sure some of the other larger needlework stores probably also carry banding. If you are thinking about doing this project you may want to check around a bit to see what your options are.