In some ways, it's the same as the musical puzzle except that it's a pocket sized version. For example, the harder you press the louder the sound gets. Or if you draw in an upwards motion, the pitch increases, etc. Different colored pens could make different kinds of sounds. Basically, it s a digital book.
Young girls can write or record diary or journal entries.
They can annotate their entries with art, audio, video, photographs, etc 1. It would be really cool if moving the glowsticks created sound in addition to responding to it. This could work via piesoelectric sensors sending radio signals to a sound synthesizer or computer. It could also work by making them whistle or resonate in a more analog fashion. The collected data can be graphed and displayed for the kid to see what their toy does during the day.