A guide I designed to use with my "musical theatre" students to help them come up with their own costumes to wear for the song "We Need a Little Christmas", which we will perform at our Holiday Concert.
The worksheet includes spaces to put pertinent information like the performance date, title, character description, budget, etc. and then has a diagram for students to draw their costume, front and back. Below the diagram is a checklist for students to write down the items they need; they can check the boxes as they get the items or if they already have them. :) :)
The body outline image I did take from Pinterest, though I was not able to find out if it was copyrighted at all. It was the most gender-neutral image I could find (don't need extra anatomy showing to design a costume) that had both front and back images.