Check out this handmade beauty – this navy and white plaid pillow cover with a pretty red decorative edge – it is exclusive to Etsy seller SouthernCharmPillows. Big checks that make a statement – and different sizes in square and oblong shapes too. It’s a little high end, pricewise, but there are lots of different options offered. She also offers the side piping in a variety of other colors (check the swatches in one of the images nearby.)
Be aware the dimensions given refer to the inserts – the cases are on average an inch smaller than the inserts to give your cushion the optimal “full” appearance, so be sure to measure yours first.