I tried Ghosty last night and he was a bit on the insensitive side (I had to get close to the counter to be reliably recognized). I increased the range in the Arduino sketch (available on this site). You can make software changes on Ghosty through the Arduino usb port (reachable through Ghosty's base).

The good news is that the single led (drawing 18 mA) provides enough light to see without shocking you into wakefulness.

I added a circular base plug (which can be tacked in with putty) to provide a more finished look.