Great Idea!
If you are thinking of lighting it with LEDs you should consider a battery operated version that would fit inside. I'm thinking like the novelty pins people wear with blinking LEDs. Maybe a shock sensitive switch to turn it on momentarily. Here is one example that I found for just the blinking LED:
6687_609_ZOM.jpg
http://www.windycitynovelties.com/red-round-led-blinky.html