The second sample is an ATC I made for a green ATC swap. The dragon is stitched in stem stitches, the horns in satin stitch.
I also use stem stitch for the labels of my quilts. This is the label of my little quilt Sunbonnet friends. The lettering is stitched in backstitches.
In 2009 I made a little redwork quilt for my niece. This is just one of the 4 blocks
I stitched in stem stitches. The finished quilt is here.
Last year I used stem stitch to emphasize the flowers on this ATC. The hearts of the flowers are chain stitches and there are straight stitches inside the petals.