My suggestion would be to build the color cube for her. If she has a place for it to sit on her shelf. My guess is that most teenagers would love this. There are six sides on a cube, so you end up with six possible functions, one of which will be off.
Let her help build it, and it’s a great introduction to three-dimensional physics. And a practical light control on top of that.
You do you need a multisensor that has an accelerometer, so that’s a cost, but for the price of two Minimotes you get a super cool light control and A really interesting practical science project.
Alternatively, the $15 securifi key fob has three buttons. It’s tiny, though, so you might want to hang it on a hook so it doesn’t get lost.
