These were a bust. They are bulbous wads that fit loosely around the back of your finger, and unless
you have fat fingers, they'll slide around and are difficult to hide or control. I was hoping for
whole thumb tips. Also, they won't turn off easily once they turn on. It would be impossible to
fine-tune a trick with the lights going on or off exactly when I choose to trigger them. There's no
sense trying to hide them behind your (hopefully fat) fingers if the lights are still glowing from
the act of barely touching them. These unfortunately got immediately demoted to cat toy ten minutes
after they arrived.