The first uses a technique called Iris Folding. There are many free patterns for this on-line, but the one I used was Circleofcrafters.com. This was what I started with:
Card Stock Paper
I took the pattern and placed it on top of the red card stock and I used a pencil to trace around the lines of the perimeter of the pattern. This left a dent in the card stock that I was able to see and cut out the star shape.
This is the pattern. I taped the card stock to the top of the pattern so that I could follow the lines. I also cut the pattern guide off so that I could see the numbers that I had to cover with each color. The side of the card stock viewed is the back.
I began taping the ribbon over the spaces following the pattern guide.
When I had covered the last one- the Iris- I turned it over and this is what I had.
I then put it in the card.