Re: Pantaloons or Bloomers pattern
Not Bloomers but really cute pants tutorial I found this in my search... LOL! (You could use the basic concept of measuring to make shorts/capris to fit to be turned into bloomers.)
Bloomers (Upcycled from a pillowcase but you could just use fabric)
I searched and couldn't find a good free pattern. (lots of infant ones!) If you have a capri or short pattern you can use that. Just make the leg not tapered and add an elastic casing (or zig zagged in if you want a ruffle at the bottom).