Cross a Magic Marker with a magic wand and you’d get something like the Crayola Light Marker, a cool new drawing tool for the iPad. Doodle in the air with the stylus, and the iPad’s front-facing camera picks up your movements and instantly renders your artwork on its screen. Free accompanying apps feature such activities as paint splatter and dot-to-dot. It’s also a great way to avoid dreaded marker-on-the-wall fiascoes that can happen when the kiddos are left unsupervised.