Black lights are perfect for parties
There are a number of other unique uses of the black light. The first is to cause a reaction to a poster or other printed material that is fluorescent. A fluorescent object will continue to glow as long as the black light is on and placed near the object.
Nothing like a cool room with black lights and interesting black light posters hanging on them. Another cool thing to do is take fluorescent paint and paint some cool objects so they glow under the light. we have an incense burner that has the fluorescent painted on to it's surface and it's waaay cool under the lights.