If you can sew this is a good tutorial on making chair cushions. It http://www.running-w-scissors.com/2011/09/tutorial-outdoor-patio-seat-cushions.html#.U-phVUgow_Y

There are many great tutorials online to show you how to make chair cushions - you can browse the styles and find the one you like best. If you are looking to paint your furniture, but want minimal work, our personal favourite paint is CeCe Caldwell's Chalk Paint. You can use it on any type of surface with no sanding or priming required. Finish it off with a clear or dark wax, depending on the look you are going for.