Kathi frequently stitches on her layouts so this challenge was natural for her! Her take on it:
This adorable card was inspired by a card on split coast stampers. Mara used Basic Grey Mellow patterned paper. The stitching was done by simply drawing with an American Crafts marker.
This cool page by Shiela includes faux stitching as well! Sheila used rub-on stitches. They add a nice detail to the page.
Martina decided to use her stitches as the lines for her journaling:
ATL Peas 
Love the stitching here. The card is super cool. I may have to lift that idea. Love love it you all!