Learned about this way back.....realy trippy......Simple to make and relitively inexpensive. The tings you will need are;#1_isopropyl rubbing alchol,#2_multi pack of neon assorted color highlight markers,#3_bottles(preferably glass),#4_and a blacklight. First fill your bottles with alchol,you should have one bottle for each corresponding marker. Next break open neon highlight markers and drop a single colored dyetube in each bottle. Last of all place the capped bottles infront of your blacklight on a shelf. Its as if each bottle is its own lamp thats way brighter than te blacklight. I have modified this method to make a light sculpture-looks cool in my backyard at night-
A few days later I'll take the dye tubes out by poring the contents of the bottle out and then I pour the liquid back in the bottle.