This igloo is the perfect thing to create in wintry weather and Smoothfoam half-balls make it so easy. This is also a great project for teachers to do with their students to learn more about Arctic animals and how the Inuit people construct their homes.
Cut a door in the half-ball with the craft knife. Cover the half-ball with Snow-Tex using the palette knife. Cut an arch that fits around the door from a scrap of Smoothfoam. You can use a piece of a larger half-ball, a sheet or disc. Another option is to use small blocks and cut them to shape around the door.
Cover the arch with Snow-Tex. Measure and indent the blocks on the igloo using an orange stick or the end of a paintbrush. Measure the rings first about an inch apart. Then mark off 2″ blocks around the bottom ring. Work up adding more blocks above the others.