Outdoor Lighting?

I'm throwing a halloween party at my house. There is inground lighting in my yard at the base of trees and built in to the deck. I would like to make this lighting a certain color if possible. Is there a film I can put over these lights or some kind of material that won't melt to make them another color (like red)?

Public Comments

1. Only simple thing that I can think of is to use colored light bulbs. This site sells Holloween colored bulbs http://www.buylighting.com/Seasonal-Light-Bulbs-s/307.htm