As a kid I used to love making noise - especially in interesting ways, like hitting different tubes or bottles with spoons or sticks, drumming on everything I could find, trumpeting through rolled up papers and so on.
I was very happy when I got a jaw harp and it made really cool sounds using a piece of metal and my mouth. Later in life this led to an enthusiasm for all kinds of overtone instruments and sounds, but as a kid I did not understand all that. I only understood that it made a cool noise, and that made me happy!
This jaw harp is a very good beginner's instrument, it is not overly fragile and has a good tone with decent sustain. It is a bit difficult to get a clean note out of, but then again - if you are just learning the ropes this is easily good enough!