i had seen a portable 4 ft blacklight at Spencers Gifts in the mall by my house a few months back that would run off of like 6 "D" size batteries. It even came with a stand. It was about 69.00 bucks
I had also found a small one that i can clip to my shirt, or the front of my pants when i use glowsticks with white strings...It looks like i am spinning two giant plates with a colored ridge. It gets real intense to look at sometimes and i have to close my eyes, but definatle puts on a great show.
You can pick up a small 12 volt generator at almost any Outdoor type place or Walmarts/ Targets/ Sam's/ sporting goods for about 30-40 bucks or so that you can plug into. it runs off of a 12 volt battery. that is usually included.
just some suggestions... im sure there are better ones on the way.
Super'
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"Only the warrior that hears the call will know when to leave, Where to go" -unknown