While contemplating how to quilt my remnant quilt, I remembered seeing pebble quilting on some quilts on the Internet and thought the circles would look good on this quilt. I googled "pebble quilting", and found a demo video by Handmade by Alissa. Then I tried it out on a scrap quilt sandwich.
As you can probably see, my pebbles aren't perfect - but then again, neither are anyone else's pebbles. It is difficult to create a perfect circle, and I rather like the imperfect quality of my pebbles. I also suspect I will get better with more practice.
I've read that pebble quilting takes awhile and uses a lot of thread. Wish my luck as I try it out!