This is extremely well-made and works great. Yes, the button is on the bottom of the cup, but that
does not make the trick awkward. And despite what the other reviewer says, you CAN produce white
lights to drop into the cup. You just need to pay close attention to the instructional video. I
performed this tonight to a family audience of 200 with a couple of volunteers onstage and it went
GREAT. Highly recommended!