You don’t need specialized materials to make art. Artists like Andy Goldsworthy, Yoko Ono, and Olafur Eliasson have made works of art from natural materials including sticks, rocks, trees, snow, and ice. An art teacher, Hirotaka Hamasaki, uses fallen leaves to recreate illustrations of characters from popular culture such as Pikachu, Kirby, and Winnie the Pooh. Your challenge this week is to take a break from raking and draw with leaves.