On aluminum foil, "draw" the outline of a star (maybe 1-3" across?) with white glue. (If you’d like to color it, you can mix a few drops of food coloring into it and squeeze it out of a cone of paper, like a pastry tube; or put it into another plastic squeeze bottle after it’s mixed.) While it’s still quite tacky, sprinkle it with glitter. When it’s dry, peel it carefully from the foil. You can also then put more glue on the flat side (or use spray glue) and add glitter there too... Ready to hang with a ribbon or hook.