This was a fun experiment with green perle 5. I started with 2 rows of ladder stitches side by side. Then I made one big ladder stitch of it, I only used the stitches on the left and right side. Afterwards I added a very small ladder stitch with pink perle 5 using the stitches on the inside. When they were so close together I could not make a new rung I made a few backward chain stitches and finished it with some backstitches.
This last example is done with perle 12 again. I made the ladder stitches wider every few stitches and I laced it with a satin ribbon. Then I filled the rest of the space with needle weaving with the same blue perle 12. I secured the ribbon with French knots.
If you want to see my complete sampler, just take a look at my Flickr-page.