UV light (or blacklight) is an almost constant source of fascination. People, young and old, love to discover if things fluoresce. Using UV light is a brilliant way of transforming relatively simple youth group games into something genuinely exciting.
Below are two videos which demonstrate some simple ways to add the fun of UV to familiar or simple youth group games:
I have put together a carefully selected list of items available from Amazon which are some of the most helpful items I've used in my blacklight experiments.
If you watch the videos you should be able to recreate the games in your own setting easily by using these products: