I created this layout and I accented the chipboard stars with black stitching.
I treated the chipboard like any other die-cut. My only advice is to be sure to pierce your holes very well so that you needle goes through the chipboard easily. Otherwise you end up with really sore fingers.
On this layout I did quite a bit of accenting on my die-cuts.
I love, love this tree! I downloaded the cut-out a long time ago and don't even know where I got it. I have saved the template to use over again. I stitched around the brown and the green using coordinating floss!
I cut the sun using my Cricut (Doodlecharms, I think) and then added the stitching to the center.
I added stitching to the centers of each flower in matching colours.
I love how stitching takes a simple die-cut and turns it into something 3-dimensional. Give it a try!