Marseye,
If many of your customers are beginners they WILL ask you for explicit instructions no matter what you put down on the sale sites.
For your websites you can simply say: "can be finished by machine with a satin stitch, small zig zag stich, blind hem (aka blind applique) stitch or blanket stitch. Can be finished by hand using blanket stitch with embroidery floss or thread or hand embroidery satin stitch"
I am sure there are loads of other ways like maybe stitching already made very thin bias tape over them giving a stained glass effect and I suppose some people could even use a straight stitch on the machine or another embroidery stitch. However, it doesn't matter what you put for your short little description you will get hammered with questions by people, especially beginners.