Welcome to the board.
One idea:
Presuming you're working with that star.
I would start with a piece of white fabric (cotton). Then take those star pieces and iron on a featherweight or lite-weight fusible interfacing to them individually. Peel off the paper and make your star as you have it now (but lay it out on a white background fabric). That white space at the end of the star? If it's actually going to be a white fabric - have them sign all around the white area except not star. If you're actually going to make this a quilted skirt: sew on a red/green binding and have them sign all the way around the bottom of the skirt on the white just above the binding. If you want to use this year after year, have them sign gift tags and pin them all on with tiny gold pins on both ends (maybe with a little 1/8" ribbon bow. Hope some of that helps. If you need to know more details you can just ask and we'll give more. Maybe not me, but someone here will chime in to get you through this project. Welcome to the board. Hope you stick around!
Collectively, we have lots of good ideas.