Hello,
The written Description that is located underneath the product lists what all is used to complete these designs and Stoney Creek buttons is listed there as an item needed. Unfortunately, we do not sell Stoney Creek buttons so those have to come directly from Stoney Creek. But you can always choose whatever buttons you like for your completed piece. Like Texas Stitcher said in her post above, you could use any embellishment that you like.
~Kristi @ ECS