In recent decades, art has steadily expanded into the digital realm, thanks, in part, to copious new apps, tools, and tutorials for creating pixelated illustrations and lifelike simulations. Playfool, a Tokyo-based design studio that seeks to spark imagination in artists of all ages through the act of play, decisively counters the trend—and draws attention to Japan’s obscure wood-waste problem—with its Forest Crayons, a series of prism-shaped drawing implements that are made from natural materials and that use wood as their sole source of pigmentation.