buy the wood from home depot, use the screws to hook the chains with and make it the size of a twin size bed.buy an old twin size mattress cover it in plastic then in outdoor fabric to make a cool swing for the covered patio @ DIY Home Design
I don't have a space problem in my garden, but this is a great idea if you do! 20 Creative Ways to Upcycle Pallets in your Garden - using pallets both vertically and horizontally to maximize growing space.
What a wonderful way to show off potted herb plants or flowers- a "tree" that holds twenty small pots on an exterior wall. Creative Ideas- plants to decorate your home and garden" via Lucid Life (article is written in Spanish)