That will work! The friend of mine that got me started made them out of the left overs from some diapers she had made and we went from there. The only other suggestion I would make it once you sew the hole together..then sew all around the outside. It keeps everything where it is supposed to be and when you put the snaps on, it just looks better and keeps things neater. You will find what works for you as you try them out. Make a few...try and then tweak as you need to. There are a lot of patterns online as well.