Quick and easy cushion, just an excuse to use the gorgeous Riley Blake Buttons!  It is a simple hourglass block, both back and front, with a zipper on the side seam, made from two co-ordinating fat quarters.  Because I had put the zipper in for easy removal for cleaning, I didn't want to stitch the buttons on permanently as that would be a pain to remove for washing.  So I have used a 4mm satin ribbon to hold the small, medium and large buttons in position on the front, stitched them through the cushion top, insert and back and tied a pretty bow on the back (see photo).  Easy to undo when the time comes.  Quite happy with the outcome.