diy: how to take in pants at the waist. IT IS AWESOME! It's nice to have nice dress pants that fit and I didn't have to spend a dime for new pants. Just spend a couple hours altering my current pants but so worth it!
I thought this might work well if you wanted to make the girls mermaid tails from sweater fabric instead of felt. How To Cut a Sweater and Secure The Yarn So it Doesn't Unravel: Button Up Cardigan Cowl (Old Sweater Refashion)