I was challenged to make a mono-color card for a weekly challenge group I joined. The mono-card was all in Basic Gray and had a star instead of a heart and I added rhinestones instead of the red candy dots. I liked it but decided it would be fun to make the same card and add a pop of Real Red to it. So, switched the star to a heart and added red candy dots instead of the rhinestones.
I saw the design in the book Card Sketches for Papercrafters. It's a great way to use some zig-zag paper.