Here is the rest of my Cameo customization. (You can see how I customized my control panel here.)
I used a swirl from the Silhouette shop on the left. The swirl on the right is from a brush I had in Photoshop. It was harder to trace and cut because of the thin lines and intricacy, but it still worked out.
I actually used the black faux leather contact paper I found at Home Depot. I also placed it contact paper side down on my mat, cut it out, removed the backing and then because my mat is clear, placed it on the Cameo, pressed down, and took off the mat. Fabulous!