First, I will show how to score and fold paper to make these ruffles.
Here is a tutorial:
I am a visual learner so here are some pictures that might help.
You can download these PDF files that show the measurements for scoring and the fold guides here: Pleated Paper Ruffles
I will also have this located on the "fun folds" tab at the top of my blog.
I made a video for the ruffled ribbon. It still needs to be edited. I should have it posted in the next few days. I also show how to make some simple ribbon flowers :)