Tutorial: DIY Tissue Paper Pom-Poms this tutorial is pretty good. Use square sheets or tissue for a rounder Pom Pom. Tie the middle with ribbon and tied several on ribbon and hung them for a backdrop. Use thin tissue paper and fluff gently.
These are a nice decoration that can be made with recyclable paper to take away the guilt of takedown or just reuse them when you table needs some color! They are also great on a wall or dangling over a window.