Vintage French Grain-Sack Linen Pillow Covers $49 - $59 [Restoration Hardware] For generations, these logos adorned cloth sacks used to carry French grains and flours. Today, they make a vintage impression on our herringbone-woven linen pillow covers.
Sacking / hessian stuff - great texture & styling for the space! Perhaps too rough for couch cushion but maybe ok as floor cushion OR a large piece of this would make a FAB floor mat to define an area - perhaps to cozy-up the couch / lounge area.
Farmhouse Stool Cushions | Ballard Designs, for window seat. I think the 3 seat bench size might work for the window seat. need to measure. (if this works, the off-white twill or natural linen would be a great choice for the window seat cushion)