To make a planet model with papier mache, blow up a balloon slightly until you have a round shape, tie off the end, and place the balloon in a bowl. Create your adhesive in a separate bowl, then tear your paper into strips, dip them in the adhesive, and cover the balloon's surface with them. Try to smooth out bubbles and bumps unless you want the planet to have a bumpy texture, then let the papier mache dry overnight. Once it's dry, pop the balloon with a thumbtack, remove it, and paint the...
