Here are a few decent Steampunk patterns for sale on Etsy
-Cheers
The little rectangle on the pattern below the waistband is just a little strip I cut out to attached a band of lace to. When I was putting all the pieces together without this piece, I felt it looked too plain :) So I cut out a 42" x 2" piece of taffeta and sewed lace onto it.
Once you've got everything cut out. Take your 3 ruffles and cut a curve into each end. I did this pretty roughly. You can then create a quick easy 'hem' by folding over the bottom twice (because it kind of frays) and ironing it. The great thing about fabric like taffeta is that it holds an ironed edge really well. BUT!! Be sure to use a piece of clean cotton or something in between the iron and your nice fabric, especially if your iron doesn't have a non-stick surface or if there's anything nasty melted onto your iron (like mine), so that your nice fabric doesn't get messed up.
Now its time to ruffle!!
I'm not sure if this step was necessary, but if you want your waistband to be a little stiffer than just the doubled over fabric you'll want to do this... add interfacing. I'd never done this before, so what I learned is that there are many many weights of interfacing and it comes in black or white and comes in iron-on or sew-on. I used black, iron-on, medium weight. If I were to do it again, I'd use a heavier weight.