I would just use plastic. This is one of the few instances where it would actually be and look appropriate in a haunt. That's what you would expect to see in a real one (if the movies I've seen are accurate).
Here's a cheap source for small beacon lights: http://www.orientaltrading.com/ui/br...d+Beacon+Light
It doesn't look like the quality is very good but they are cheap and that can be very important late in the game.
Where are you at in California?






