This wool penny mat from Primitive Gatherings was purchased and started on last year's trip to the International Quilt Festival in Cincinnati. See the X in the center of the smaller squares? While sewing on the plane, the ride was so rough my pieces were bouncing around so I tacked them down in place until I could get the buttonhole stitching done. I actually like that big X as a design feature too, and may leave it in. This is a pretty small mat, only about 12 inches across. Aren't all the plaid wools great? See more design walls on Judy's Patchwork Times.