I did it on my snowman quilt. I just did quilting designs. There are lots of them at emblibrary.com and they cost about $1 each. When I first read here that people quilt with their embroidery machines, I was thinking more like doing a big design with their embroidery modules. I found that difficult. (I tried it on a different quilt with embroidering bluebells...finally finished the quilt--haven't posted it yet.)
Here is my quilt.
http://www.quiltingboard.com/picture...s-t215430.html
It's not a very big quilt--more like couch size, and I stitched in the ditch along the 9 patches and then used the embroidery machine to fill in the white spots with one of two designs--snowman or snowflakes. Pictures are at the link given.