Step 1: Supplies
-Choosing a Material:
So you're going to need material. You can buy fabric, I'd suggest a cotton/lycra blend, or something that's a bit stretchy. In this, I use hand-me-down t shirts.
-Amount of Material:
For a size 6ish women's, I use 3 mens shirts in this, but I would suggest at least one more so that it flows a bit better.
More panels = more frills
If you were buying fabric, for the same size skirt, I'd say at least 3 yds.
you can use different colors, or patterns, or different patterns, whatever you like.