Replacement swing canopies and cushions are available at The Home Depot, Ace Hardware, True Value and J.C. Penney. Additional sources for purchasing replacement canopies and cushions include Amazon.com, eBay.com and Lowes.com.
As of November 2015, Amazon sells a brand new replacement swing canopy cover that features durable 180-gram polyester, UV blocking and Velcro tab attachments. The canopy is water-, mildew-, fade- and stain-resistant. EBay has a variety of new and used replacement canopy and cushion listings for a wide range of swings.
Lowe's sells replacement tops for Garden Treasure and Arden Outdoor porch swing gliders. The tops come in a variety of colors including green, red and brown.