If you’re wanting new throw pillows but don’t want to spend the money to buy new ones, then you might consider buying square pillow covers.  I found some really nice red pillow covers on sale for half price at Pottery Barn a while back.  They have a full zipper on one edge, making it easy to put them on the pillow.  It’s easy to find them online, too.  Just make sure you measure the pillow first.