What are your Favorite lights to play with for hang shows or poi or what not.

For poi aside from fire I am in love with my glow poi from flowtoys.com and they are worth every penny. I have beat mine so bad sometimes when I am spinning a little too fast and haven't broken them yet.
as far as hand shows go I like two Inova leds ( yes the cheap ones from target) on a key ring for each hand. They offer a lot of versatility and you can change the settings and everything on the fly. Plus they just make for a beautiful show.