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.
Crafts~N~Things for Children: Toilet Paper Roll Octopus Craft - One could take tissue paper of the same color and add little treats to make these into party favors. Wrap the treats up in the tissue paper and stuff inside the octopus.