Amazon.com: Phantoscope 18x18 Pillow Inserts, Set of 4 Hypoallergenic 100% Virgin Fiber Square Form Decorative Throw Pillow Inserts, Made in USA Couch Bed Pillows - 18 inches 45x45 cm : Home & Kitchen
Poly-Fil® Basic™ 2ct. Pillow Inserts, 18" x 18" | Michaels
Poly-Fil® Crafter's Choice® Decorative Square Pillow Inserts by Fairfield™, 18" x 18" (Pack of 2) - Walmart.com
18x18 Pillow Insert Set of 2, Decorative Sham Throw Pillow Inserts Square Cushio | eBay