colonelmasako
Active Member
How about a security pen and UV LED? You'd have to find a good place to hide the UV LED so it pointed at the design on your face, but it would look very ISO, and is a very simple setup.
Ehh, be careful here, do some research. UV Leds are low power, but it doesn't take much to damage your eyes. UV LEDs pointed anywhere near or at your eyes, without glasses or any protection, just sounds like a bad idea. And it may not work either, so do some experiments.
Most blue LEDs have enough UV coming out of them to illuminate flourescent objects, so I know that works. But blue in your eyes is also a problem: look up blue radiation effects on a retina, its bad stuff. For an LED its not as bad, but some blue LED diodes are considered laser products in brightness.
Be cautious I guess. Don't blind yourself, or damage your eyes, they are too important just for a silly costume. Have you considered fiber optics? Might be easier and less damaging. Light source in your hair, fiber runs down your face, etc.