good morning.
I stipple my own. I just drop the feed dogs and go to town. I love to stipple, I do stitch in the ditch sometimes. I always did that on my regular sewing machine. but now I bought a juki TL98Q. that machine is so cool.
But again my regular machine (singer) is what I always did mine on.
try stippling a place mat and see how you like it
best of luck to you.
Dawn