I was at the dollar store the other day and noticed some really stupid lights that you put in your mouth. The lights which are LED’s (very bright LED’s mind you) are inside of a soft rubbery plastic retainer type of mouth thing. The unit is sealed inside so it’s done once the batteries go dead. Of course I bought a few and opened them up to see what I could do with them etc. There are 4 LED’s inside. They could be changed to get the color(s) you want and the batteries could be converted to a constant power source too. I was thinking about making them all red for a fire engine or blue for police cars… The lights flash in a really fast strobe pattern that I’ve only seen on emergency vehicles. I’ll have to take some video of the them to show everybody but in the mean time, check out your local dollar store to see if they have anything like this. They are cheap and easy to modify for our needs.
Jon.