You can buy a saw bench at places like Home Depot and Lowes. They can order one for you if they don't have it in stock.
where can you buy plastic swing seat feet grips or caps that go on the bottom
I think you can buy one at Walmart in the outdoor and garden section.
"Swing Your Partner" is available from ralphsmusic@earthlink.net
Swing dresses can be found at the links provide below in addtion links
Home Depot and Lowe's both have a large selection. Another good place to buy a swing set is Costco.
Furniture Stores?.....
You can buy them at floridaplaysets.com or local home depot stores.
homebase
A consumer can purchase a replacement swing seat for a kids swing set at a variety of department stores such as Walmart and Target, or directly from the manufacturer via the internet or telephone.
Replacement caps for the legs of your swing can be purchased at most home improvement stores. You can also probably buy them at the same place you got the swing from.
You can purchase a metal swing set from the Toys 'R Us website. Alternatively, you can also purchase metal swing sets online from stores such as Walmart.
To to either to find a porch swing http://home.shop.ebay.com/Swings-/79700/i.html?_nkw=porch+swing or http://www.amazon.com/Porch-Swings-Patio-Furniture/b?ie=UTF8&node=3742561